21461456

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16979}}^1$

素因数の和:17066

約数の個数: 20

約数和(自身を含む): 42110400

約数和(自身を除く): 20648944

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16979, 33958, 67916, 135832, 271664, 1341341, 2682682, 5365364, 10730728, 21461456]

約数ペア:

[(1, 21461456), (2, 10730728), (4, 5365364), (8, 2682682), (16, 1341341), (79, 271664), (158, 135832), (316, 67916), (632, 33958), (1264, 16979)]