18238990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23687}}^1$

素因数の和:23712

約数の個数: 32

約数和(自身を含む): 40932864

約数和(自身を除く): 22693874

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 23687, 47374, 118435, 165809, 236870, 260557, 331618, 521114, 829045, 1302785, 1658090, 1823899, 2605570, 3647798, 9119495, 18238990]

約数ペア:

[(1, 18238990), (2, 9119495), (5, 3647798), (7, 2605570), (10, 1823899), (11, 1658090), (14, 1302785), (22, 829045), (35, 521114), (55, 331618), (70, 260557), (77, 236870), (110, 165809), (154, 118435), (385, 47374), (770, 23687)]