18883216

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3461}}^1$

素因数の和:3511

約数の個数: 40

約数和(自身を含む): 41211648

約数和(自身を除く): 22328432

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 341, 496, 682, 1364, 2728, 3461, 5456, 6922, 13844, 27688, 38071, 55376, 76142, 107291, 152284, 214582, 304568, 429164, 609136, 858328, 1180201, 1716656, 2360402, 4720804, 9441608, 18883216]

約数ペア:

[(1, 18883216), (2, 9441608), (4, 4720804), (8, 2360402), (11, 1716656), (16, 1180201), (22, 858328), (31, 609136), (44, 429164), (62, 304568), (88, 214582), (124, 152284), (176, 107291), (248, 76142), (341, 55376), (496, 38071), (682, 27688), (1364, 13844), (2728, 6922), (3461, 5456)]