20268703

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{677}}^1$

素因数の和:751

約数の個数: 24

約数和(自身を含む): 25970112

約数和(自身を除く): 5701409

約数列:

[1, 7, 13, 47, 49, 91, 329, 611, 637, 677, 2303, 4277, 4739, 8801, 29939, 31819, 33173, 61607, 222733, 413647, 431249, 1559131, 2895529, 20268703]

約数ペア:

[(1, 20268703), (7, 2895529), (13, 1559131), (47, 431249), (49, 413647), (91, 222733), (329, 61607), (611, 33173), (637, 31819), (677, 29939), (2303, 8801), (4277, 4739)]