18724216

素因数分解:

$2^3\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1399}}^1$

素因数の和:1651

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 21595784

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 239, 478, 956, 1399, 1673, 1912, 2798, 3346, 5596, 6692, 9793, 11192, 13384, 19586, 39172, 78344, 334361, 668722, 1337444, 2340527, 2674888, 4681054, 9362108, 18724216]

約数ペア:

[(1, 18724216), (2, 9362108), (4, 4681054), (7, 2674888), (8, 2340527), (14, 1337444), (28, 668722), (56, 334361), (239, 78344), (478, 39172), (956, 19586), (1399, 13384), (1673, 11192), (1912, 9793), (2798, 6692), (3346, 5596)]