18181072

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12487}}^1$

素因数の和:12515

約数の個数: 40

約数和(自身を含む): 43358336

約数和(自身を除く): 25177264

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12487, 24974, 49948, 87409, 99896, 162331, 174818, 199792, 324662, 349636, 649324, 699272, 1136317, 1298648, 1398544, 2272634, 2597296, 4545268, 9090536, 18181072]

約数ペア:

[(1, 18181072), (2, 9090536), (4, 4545268), (7, 2597296), (8, 2272634), (13, 1398544), (14, 1298648), (16, 1136317), (26, 699272), (28, 649324), (52, 349636), (56, 324662), (91, 199792), (104, 174818), (112, 162331), (182, 99896), (208, 87409), (364, 49948), (728, 24974), (1456, 12487)]