21199860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:155

約数の個数: 192

約数和(自身を含む): 74511360

約数和(自身を除く): 53311500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 43, 44, 45, 54, 55, 60, 66, 83, 86, 90, 99, 108, 110, 129, 132, 135, 165, 166, 172, 180, 198, 215, 220, 249, 258, 270, 297, 330, 332, 387, 396, 415, 430, 473, 495, 498, 516, 540, 594, 645, 660, 747, 774, 830, 860, 913, 946, 990, 996, 1161, 1188, 1245, 1290, 1419, 1485, 1494, 1548, 1660, 1826, 1892, 1935, 1980, 2241, 2322, 2365, 2490, 2580, 2739, 2838, 2970, 2988, 3569, 3652, 3735, 3870, 4257, 4482, 4565, 4644, 4730, 4980, 5478, 5676, 5805, 5940, 7095, 7138, 7470, 7740, 8217, 8514, 8964, 9130, 9460, 10707, 10956, 11205, 11610, 12771, 13695, 14190, 14276, 14940, 16434, 17028, 17845, 18260, 21285, 21414, 22410, 23220, 24651, 25542, 27390, 28380, 32121, 32868, 35690, 39259, 41085, 42570, 42828, 44820, 49302, 51084, 53535, 54780, 63855, 64242, 71380, 78518, 82170, 85140, 96363, 98604, 107070, 117777, 123255, 127710, 128484, 157036, 160605, 164340, 192726, 196295, 214140, 235554, 246510, 255420, 321210, 353331, 385452, 392590, 471108, 481815, 493020, 588885, 642420, 706662, 785180, 963630, 1059993, 1177770, 1413324, 1766655, 1927260, 2119986, 2355540, 3533310, 4239972, 5299965, 7066620, 10599930, 21199860]

約数ペア:

[(1, 21199860), (2, 10599930), (3, 7066620), (4, 5299965), (5, 4239972), (6, 3533310), (9, 2355540), (10, 2119986), (11, 1927260), (12, 1766655), (15, 1413324), (18, 1177770), (20, 1059993), (22, 963630), (27, 785180), (30, 706662), (33, 642420), (36, 588885), (43, 493020), (44, 481815), (45, 471108), (54, 392590), (55, 385452), (60, 353331), (66, 321210), (83, 255420), (86, 246510), (90, 235554), (99, 214140), (108, 196295), (110, 192726), (129, 164340), (132, 160605), (135, 157036), (165, 128484), (166, 127710), (172, 123255), (180, 117777), (198, 107070), (215, 98604), (220, 96363), (249, 85140), (258, 82170), (270, 78518), (297, 71380), (330, 64242), (332, 63855), (387, 54780), (396, 53535), (415, 51084), (430, 49302), (473, 44820), (495, 42828), (498, 42570), (516, 41085), (540, 39259), (594, 35690), (645, 32868), (660, 32121), (747, 28380), (774, 27390), (830, 25542), (860, 24651), (913, 23220), (946, 22410), (990, 21414), (996, 21285), (1161, 18260), (1188, 17845), (1245, 17028), (1290, 16434), (1419, 14940), (1485, 14276), (1494, 14190), (1548, 13695), (1660, 12771), (1826, 11610), (1892, 11205), (1935, 10956), (1980, 10707), (2241, 9460), (2322, 9130), (2365, 8964), (2490, 8514), (2580, 8217), (2739, 7740), (2838, 7470), (2970, 7138), (2988, 7095), (3569, 5940), (3652, 5805), (3735, 5676), (3870, 5478), (4257, 4980), (4482, 4730), (4565, 4644)]