21472672

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{727}}^1$

素因数の和:821

約数の個数: 48

約数和(自身を含む): 46230912

約数和(自身を除く): 24758240

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 71, 104, 142, 208, 284, 416, 568, 727, 923, 1136, 1454, 1846, 2272, 2908, 3692, 5816, 7384, 9451, 11632, 14768, 18902, 23264, 29536, 37804, 51617, 75608, 103234, 151216, 206468, 302432, 412936, 671021, 825872, 1342042, 1651744, 2684084, 5368168, 10736336, 21472672]

約数ペア:

[(1, 21472672), (2, 10736336), (4, 5368168), (8, 2684084), (13, 1651744), (16, 1342042), (26, 825872), (32, 671021), (52, 412936), (71, 302432), (104, 206468), (142, 151216), (208, 103234), (284, 75608), (416, 51617), (568, 37804), (727, 29536), (923, 23264), (1136, 18902), (1454, 14768), (1846, 11632), (2272, 9451), (2908, 7384), (3692, 5816)]