21708720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2741}}^1$

素因数の和:2771

約数の個数: 120

約数和(自身を含む): 79561872

約数和(自身を除く): 57853152

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 2741, 3960, 5482, 7920, 8223, 10964, 13705, 16446, 21928, 24669, 27410, 30151, 32892, 41115, 43856, 49338, 54820, 60302, 65784, 82230, 90453, 98676, 109640, 120604, 123345, 131568, 150755, 164460, 180906, 197352, 219280, 241208, 246690, 271359, 301510, 328920, 361812, 394704, 452265, 482416, 493380, 542718, 603020, 657840, 723624, 904530, 986760, 1085436, 1206040, 1356795, 1447248, 1809060, 1973520, 2170872, 2412080, 2713590, 3618120, 4341744, 5427180, 7236240, 10854360, 21708720]

約数ペア:

[(1, 21708720), (2, 10854360), (3, 7236240), (4, 5427180), (5, 4341744), (6, 3618120), (8, 2713590), (9, 2412080), (10, 2170872), (11, 1973520), (12, 1809060), (15, 1447248), (16, 1356795), (18, 1206040), (20, 1085436), (22, 986760), (24, 904530), (30, 723624), (33, 657840), (36, 603020), (40, 542718), (44, 493380), (45, 482416), (48, 452265), (55, 394704), (60, 361812), (66, 328920), (72, 301510), (80, 271359), (88, 246690), (90, 241208), (99, 219280), (110, 197352), (120, 180906), (132, 164460), (144, 150755), (165, 131568), (176, 123345), (180, 120604), (198, 109640), (220, 98676), (240, 90453), (264, 82230), (330, 65784), (360, 60302), (396, 54820), (440, 49338), (495, 43856), (528, 41115), (660, 32892), (720, 30151), (792, 27410), (880, 24669), (990, 21928), (1320, 16446), (1584, 13705), (1980, 10964), (2640, 8223), (2741, 7920), (3960, 5482)]