18684428

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2309}}^1$

素因数の和:2354

約数の個数: 36

約数和(自身を含む): 39713520

約数和(自身を除く): 21029092

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 289, 476, 578, 1156, 2023, 2309, 4046, 4618, 8092, 9236, 16163, 32326, 39253, 64652, 78506, 157012, 274771, 549542, 667301, 1099084, 1334602, 2669204, 4671107, 9342214, 18684428]

約数ペア:

[(1, 18684428), (2, 9342214), (4, 4671107), (7, 2669204), (14, 1334602), (17, 1099084), (28, 667301), (34, 549542), (68, 274771), (119, 157012), (238, 78506), (289, 64652), (476, 39253), (578, 32326), (1156, 16163), (2023, 9236), (2309, 8092), (4046, 4618)]