21653564289

素因数分解:

$3^1\times 7^1\times {\mathrm{769}}^1\times {\mathrm{1340861}}^1$

素因数の和:1341640

約数の個数: 16

約数和(自身を含む): 33038839680

約数和(自身を除く): 11385275391

約数列:

[1, 3, 7, 21, 769, 2307, 5383, 16149, 1340861, 4022583, 9386027, 28158081, 1031122109, 3093366327, 7217854763, 21653564289]

約数ペア:

[(1, 21653564289), (3, 7217854763), (7, 3093366327), (21, 1031122109), (769, 28158081), (2307, 9386027), (5383, 4022583), (16149, 1340861)]