18397484

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 38572800

約数和(自身を除く): 20175316

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 139, 163, 203, 278, 326, 406, 556, 652, 812, 973, 1141, 1946, 2282, 3892, 4031, 4564, 4727, 8062, 9454, 16124, 18908, 22657, 28217, 33089, 45314, 56434, 66178, 90628, 112868, 132356, 158599, 317198, 634396, 657053, 1314106, 2628212, 4599371, 9198742, 18397484]

約数ペア:

[(1, 18397484), (2, 9198742), (4, 4599371), (7, 2628212), (14, 1314106), (28, 657053), (29, 634396), (58, 317198), (116, 158599), (139, 132356), (163, 112868), (203, 90628), (278, 66178), (326, 56434), (406, 45314), (556, 33089), (652, 28217), (812, 22657), (973, 18908), (1141, 16124), (1946, 9454), (2282, 8062), (3892, 4727), (4031, 4564)]