18211556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 37340352

約数和(自身を除く): 19128796

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 97, 187, 194, 251, 374, 388, 502, 748, 1004, 1067, 1649, 2134, 2761, 3298, 4267, 4268, 5522, 6596, 8534, 11044, 17068, 18139, 24347, 36278, 46937, 48694, 72556, 93874, 97388, 187748, 267817, 413899, 535634, 827798, 1071268, 1655596, 4552889, 9105778, 18211556]

約数ペア:

[(1, 18211556), (2, 9105778), (4, 4552889), (11, 1655596), (17, 1071268), (22, 827798), (34, 535634), (44, 413899), (68, 267817), (97, 187748), (187, 97388), (194, 93874), (251, 72556), (374, 48694), (388, 46937), (502, 36278), (748, 24347), (1004, 18139), (1067, 17068), (1649, 11044), (2134, 8534), (2761, 6596), (3298, 5522), (4267, 4268)]