18966808

素因数分解:

$2^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2243}}^1$

素因数の和:2407

約数の個数: 32

約数和(自身を含む): 40930560

約数和(自身を除く): 21963752

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 151, 302, 604, 1057, 1208, 2114, 2243, 4228, 4486, 8456, 8972, 15701, 17944, 31402, 62804, 125608, 338693, 677386, 1354772, 2370851, 2709544, 4741702, 9483404, 18966808]

約数ペア:

[(1, 18966808), (2, 9483404), (4, 4741702), (7, 2709544), (8, 2370851), (14, 1354772), (28, 677386), (56, 338693), (151, 125608), (302, 62804), (604, 31402), (1057, 17944), (1208, 15701), (2114, 8972), (2243, 8456), (4228, 4486)]