21355872

素因数分解:

$2^5\times 3^1\times {\mathrm{149}}^1\times {\mathrm{1493}}^1$

素因数の和:1655

約数の個数: 48

約数和(自身を含む): 56473200

約数和(自身を除く): 35117328

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 149, 298, 447, 596, 894, 1192, 1493, 1788, 2384, 2986, 3576, 4479, 4768, 5972, 7152, 8958, 11944, 14304, 17916, 23888, 35832, 47776, 71664, 143328, 222457, 444914, 667371, 889828, 1334742, 1779656, 2669484, 3559312, 5338968, 7118624, 10677936, 21355872]

約数ペア:

[(1, 21355872), (2, 10677936), (3, 7118624), (4, 5338968), (6, 3559312), (8, 2669484), (12, 1779656), (16, 1334742), (24, 889828), (32, 667371), (48, 444914), (96, 222457), (149, 143328), (298, 71664), (447, 47776), (596, 35832), (894, 23888), (1192, 17916), (1493, 14304), (1788, 11944), (2384, 8958), (2986, 7152), (3576, 5972), (4479, 4768)]