1288492779

素因数分解:

$3^1\times 7^2\times {\mathrm{2633}}^1\times {\mathrm{3329}}^1$

素因数の和:5979

約数の個数: 24

約数和(自身を含む): 1999838160

約数和(自身を除く): 711345381

約数列:

[1, 3, 7, 21, 49, 147, 2633, 3329, 7899, 9987, 18431, 23303, 55293, 69909, 129017, 163121, 387051, 489363, 8765257, 26295771, 61356799, 184070397, 429497593, 1288492779]

約数ペア:

[(1, 1288492779), (3, 429497593), (7, 184070397), (21, 61356799), (49, 26295771), (147, 8765257), (2633, 489363), (3329, 387051), (7899, 163121), (9987, 129017), (18431, 69909), (23303, 55293)]