18811856

素因数分解:

$2^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1663}}^1$

素因数の和:1779

約数の個数: 40

約数和(自身を含む): 42092544

約数和(自身を除く): 23280688

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 101, 112, 202, 404, 707, 808, 1414, 1616, 1663, 2828, 3326, 5656, 6652, 11312, 11641, 13304, 23282, 26608, 46564, 93128, 167963, 186256, 335926, 671852, 1175741, 1343704, 2351482, 2687408, 4702964, 9405928, 18811856]

約数ペア:

[(1, 18811856), (2, 9405928), (4, 4702964), (7, 2687408), (8, 2351482), (14, 1343704), (16, 1175741), (28, 671852), (56, 335926), (101, 186256), (112, 167963), (202, 93128), (404, 46564), (707, 26608), (808, 23282), (1414, 13304), (1616, 11641), (1663, 11312), (2828, 6652), (3326, 5656)]