18686388

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1493}}^1$

素因数の和:1656

約数の個数: 48

約数和(自身を含む): 50198400

約数和(自身を除く): 31512012

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 149, 298, 447, 596, 894, 1043, 1493, 1788, 2086, 2986, 3129, 4172, 4479, 5972, 6258, 8958, 10451, 12516, 17916, 20902, 31353, 41804, 62706, 125412, 222457, 444914, 667371, 889828, 1334742, 1557199, 2669484, 3114398, 4671597, 6228796, 9343194, 18686388]

約数ペア:

[(1, 18686388), (2, 9343194), (3, 6228796), (4, 4671597), (6, 3114398), (7, 2669484), (12, 1557199), (14, 1334742), (21, 889828), (28, 667371), (42, 444914), (84, 222457), (149, 125412), (298, 62706), (447, 41804), (596, 31353), (894, 20902), (1043, 17916), (1493, 12516), (1788, 10451), (2086, 8958), (2986, 6258), (3129, 5972), (4172, 4479)]