18865808

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{6977}}^1$

素因数の和:7011

約数の個数: 30

約数和(自身を含む): 39586194

約数和(自身を除く): 20720386

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 6977, 13954, 27908, 55816, 90701, 111632, 181402, 362804, 725608, 1179113, 1451216, 2358226, 4716452, 9432904, 18865808]

約数ペア:

[(1, 18865808), (2, 9432904), (4, 4716452), (8, 2358226), (13, 1451216), (16, 1179113), (26, 725608), (52, 362804), (104, 181402), (169, 111632), (208, 90701), (338, 55816), (676, 27908), (1352, 13954), (2704, 6977)]