21314480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{457}}^1$

素因数の和:534

約数の個数: 80

約数和(自身を含む): 55201824

約数和(自身を除く): 33887344

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 53, 55, 80, 88, 106, 110, 176, 212, 220, 265, 424, 440, 457, 530, 583, 848, 880, 914, 1060, 1166, 1828, 2120, 2285, 2332, 2915, 3656, 4240, 4570, 4664, 5027, 5830, 7312, 9140, 9328, 10054, 11660, 18280, 20108, 23320, 24221, 25135, 36560, 40216, 46640, 48442, 50270, 80432, 96884, 100540, 121105, 193768, 201080, 242210, 266431, 387536, 402160, 484420, 532862, 968840, 1065724, 1332155, 1937680, 2131448, 2664310, 4262896, 5328620, 10657240, 21314480]

約数ペア:

[(1, 21314480), (2, 10657240), (4, 5328620), (5, 4262896), (8, 2664310), (10, 2131448), (11, 1937680), (16, 1332155), (20, 1065724), (22, 968840), (40, 532862), (44, 484420), (53, 402160), (55, 387536), (80, 266431), (88, 242210), (106, 201080), (110, 193768), (176, 121105), (212, 100540), (220, 96884), (265, 80432), (424, 50270), (440, 48442), (457, 46640), (530, 40216), (583, 36560), (848, 25135), (880, 24221), (914, 23320), (1060, 20108), (1166, 18280), (1828, 11660), (2120, 10054), (2285, 9328), (2332, 9140), (2915, 7312), (3656, 5830), (4240, 5027), (4570, 4664)]