21989058

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:168

約数の個数: 128

約数和(自身を含む): 60383232

約数和(自身を除く): 38394174

約数列:

[1, 2, 3, 6, 7, 13, 14, 17, 21, 23, 26, 34, 39, 42, 46, 51, 69, 78, 91, 102, 103, 119, 138, 161, 182, 206, 221, 238, 273, 299, 309, 322, 357, 391, 442, 483, 546, 598, 618, 663, 714, 721, 782, 897, 966, 1173, 1326, 1339, 1442, 1547, 1751, 1794, 2093, 2163, 2346, 2369, 2678, 2737, 3094, 3502, 4017, 4186, 4326, 4641, 4738, 5083, 5253, 5474, 6279, 7107, 8034, 8211, 9282, 9373, 10166, 10506, 12257, 12558, 14214, 15249, 16422, 16583, 18746, 22763, 24514, 28119, 30498, 30797, 33166, 35581, 36771, 40273, 45526, 49749, 56238, 61594, 68289, 71162, 73542, 80546, 92391, 99498, 106743, 120819, 136578, 159341, 184782, 213486, 215579, 241638, 281911, 318682, 431158, 478023, 523549, 563822, 646737, 845733, 956046, 1047098, 1293474, 1570647, 1691466, 3141294, 3664843, 7329686, 10994529, 21989058]

約数ペア:

[(1, 21989058), (2, 10994529), (3, 7329686), (6, 3664843), (7, 3141294), (13, 1691466), (14, 1570647), (17, 1293474), (21, 1047098), (23, 956046), (26, 845733), (34, 646737), (39, 563822), (42, 523549), (46, 478023), (51, 431158), (69, 318682), (78, 281911), (91, 241638), (102, 215579), (103, 213486), (119, 184782), (138, 159341), (161, 136578), (182, 120819), (206, 106743), (221, 99498), (238, 92391), (273, 80546), (299, 73542), (309, 71162), (322, 68289), (357, 61594), (391, 56238), (442, 49749), (483, 45526), (546, 40273), (598, 36771), (618, 35581), (663, 33166), (714, 30797), (721, 30498), (782, 28119), (897, 24514), (966, 22763), (1173, 18746), (1326, 16583), (1339, 16422), (1442, 15249), (1547, 14214), (1751, 12558), (1794, 12257), (2093, 10506), (2163, 10166), (2346, 9373), (2369, 9282), (2678, 8211), (2737, 8034), (3094, 7107), (3502, 6279), (4017, 5474), (4186, 5253), (4326, 5083), (4641, 4738)]