20137719

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 32338944

約数和(自身を除く): 12201225

約数列:

[1, 3, 7, 21, 23, 69, 161, 173, 241, 483, 519, 723, 1211, 1687, 3633, 3979, 5061, 5543, 11937, 16629, 27853, 38801, 41693, 83559, 116403, 125079, 291851, 875553, 958939, 2876817, 6712573, 20137719]

約数ペア:

[(1, 20137719), (3, 6712573), (7, 2876817), (21, 958939), (23, 875553), (69, 291851), (161, 125079), (173, 116403), (241, 83559), (483, 41693), (519, 38801), (723, 27853), (1211, 16629), (1687, 11937), (3633, 5543), (3979, 5061)]