18578648

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3461}}^1$

素因数の和:3539

約数の個数: 32

約数和(自身を含む): 38635920

約数和(自身を除く): 20057272

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 3461, 5368, 6922, 13844, 27688, 38071, 76142, 152284, 211121, 304568, 422242, 844484, 1688968, 2322331, 4644662, 9289324, 18578648]

約数ペア:

[(1, 18578648), (2, 9289324), (4, 4644662), (8, 2322331), (11, 1688968), (22, 844484), (44, 422242), (61, 304568), (88, 211121), (122, 152284), (244, 76142), (488, 38071), (671, 27688), (1342, 13844), (2684, 6922), (3461, 5368)]