18128888

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2909}}^1$

素因数の和:2975

約数の個数: 32

約数和(自身を含む): 36666000

約数和(自身を除く): 18537112

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 152, 164, 328, 779, 1558, 2909, 3116, 5818, 6232, 11636, 23272, 55271, 110542, 119269, 221084, 238538, 442168, 477076, 954152, 2266111, 4532222, 9064444, 18128888]

約数ペア:

[(1, 18128888), (2, 9064444), (4, 4532222), (8, 2266111), (19, 954152), (38, 477076), (41, 442168), (76, 238538), (82, 221084), (152, 119269), (164, 110542), (328, 55271), (779, 23272), (1558, 11636), (2909, 6232), (3116, 5818)]