21669810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{10781}}^1$

素因数の和:10858

約数の個数: 32

約数和(自身を含む): 52788672

約数和(自身を除く): 31118862

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 134, 201, 335, 402, 670, 1005, 2010, 10781, 21562, 32343, 53905, 64686, 107810, 161715, 323430, 722327, 1444654, 2166981, 3611635, 4333962, 7223270, 10834905, 21669810]

約数ペア:

[(1, 21669810), (2, 10834905), (3, 7223270), (5, 4333962), (6, 3611635), (10, 2166981), (15, 1444654), (30, 722327), (67, 323430), (134, 161715), (201, 107810), (335, 64686), (402, 53905), (670, 32343), (1005, 21562), (2010, 10781)]