21669156

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 57375864

約数和(自身を除く): 35706708

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 53, 82, 106, 123, 159, 164, 212, 246, 277, 318, 369, 477, 492, 554, 636, 738, 831, 954, 1108, 1476, 1662, 1908, 2173, 2493, 3324, 4346, 4986, 6519, 8692, 9972, 11357, 13038, 14681, 19557, 22714, 26076, 29362, 34071, 39114, 44043, 45428, 58724, 68142, 78228, 88086, 102213, 132129, 136284, 176172, 204426, 264258, 408852, 528516, 601921, 1203842, 1805763, 2407684, 3611526, 5417289, 7223052, 10834578, 21669156]

約数ペア:

[(1, 21669156), (2, 10834578), (3, 7223052), (4, 5417289), (6, 3611526), (9, 2407684), (12, 1805763), (18, 1203842), (36, 601921), (41, 528516), (53, 408852), (82, 264258), (106, 204426), (123, 176172), (159, 136284), (164, 132129), (212, 102213), (246, 88086), (277, 78228), (318, 68142), (369, 58724), (477, 45428), (492, 44043), (554, 39114), (636, 34071), (738, 29362), (831, 26076), (954, 22714), (1108, 19557), (1476, 14681), (1662, 13038), (1908, 11357), (2173, 9972), (2493, 8692), (3324, 6519), (4346, 4986)]