21945303

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 33976320

約数和(自身を除く): 12031017

約数列:

[1, 3, 9, 27, 31, 93, 157, 167, 279, 471, 501, 837, 1413, 1503, 4239, 4509, 4867, 5177, 14601, 15531, 26219, 43803, 46593, 78657, 131409, 139779, 235971, 707913, 812789, 2438367, 7315101, 21945303]

約数ペア:

[(1, 21945303), (3, 7315101), (9, 2438367), (27, 812789), (31, 707913), (93, 235971), (157, 139779), (167, 131409), (279, 78657), (471, 46593), (501, 43803), (837, 26219), (1413, 15531), (1503, 14601), (4239, 5177), (4509, 4867)]