21995430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1$

素因数の和:461

約数の個数: 64

約数和(自身を含む): 55461888

約数和(自身を除く): 33466458

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 67, 93, 134, 155, 186, 201, 310, 335, 353, 402, 465, 670, 706, 930, 1005, 1059, 1765, 2010, 2077, 2118, 3530, 4154, 5295, 6231, 10385, 10590, 10943, 12462, 20770, 21886, 23651, 31155, 32829, 47302, 54715, 62310, 65658, 70953, 109430, 118255, 141906, 164145, 236510, 328290, 354765, 709530, 733181, 1466362, 2199543, 3665905, 4399086, 7331810, 10997715, 21995430]

約数ペア:

[(1, 21995430), (2, 10997715), (3, 7331810), (5, 4399086), (6, 3665905), (10, 2199543), (15, 1466362), (30, 733181), (31, 709530), (62, 354765), (67, 328290), (93, 236510), (134, 164145), (155, 141906), (186, 118255), (201, 109430), (310, 70953), (335, 65658), (353, 62310), (402, 54715), (465, 47302), (670, 32829), (706, 31155), (930, 23651), (1005, 21886), (1059, 20770), (1765, 12462), (2010, 10943), (2077, 10590), (2118, 10385), (3530, 6231), (4154, 5295)]