21929368

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 42154560

約数和(自身を除く): 20225192

約数列:

[1, 2, 4, 8, 67, 134, 163, 251, 268, 326, 502, 536, 652, 1004, 1304, 2008, 10921, 16817, 21842, 33634, 40913, 43684, 67268, 81826, 87368, 134536, 163652, 327304, 2741171, 5482342, 10964684, 21929368]

約数ペア:

[(1, 21929368), (2, 10964684), (4, 5482342), (8, 2741171), (67, 327304), (134, 163652), (163, 134536), (251, 87368), (268, 81826), (326, 67268), (502, 43684), (536, 40913), (652, 33634), (1004, 21842), (1304, 16817), (2008, 10921)]