21315642

素因数分解:

$2^1\times 3^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 43502400

約数和(自身を除く): 22186758

約数列:

[1, 2, 3, 6, 113, 149, 211, 226, 298, 339, 422, 447, 633, 678, 894, 1266, 16837, 23843, 31439, 33674, 47686, 50511, 62878, 71529, 94317, 101022, 143058, 188634, 3552607, 7105214, 10657821, 21315642]

約数ペア:

[(1, 21315642), (2, 10657821), (3, 7105214), (6, 3552607), (113, 188634), (149, 143058), (211, 101022), (226, 94317), (298, 71529), (339, 62878), (422, 50511), (447, 47686), (633, 33674), (678, 31439), (894, 23843), (1266, 16837)]