20779974

素因数分解:

$2^1\times 3^2\times {\mathrm{809}}^1\times {\mathrm{1427}}^1$

素因数の和:2244

約数の個数: 24

約数和(自身を含む): 45110520

約数和(自身を除く): 24330546

約数列:

[1, 2, 3, 6, 9, 18, 809, 1427, 1618, 2427, 2854, 4281, 4854, 7281, 8562, 12843, 14562, 25686, 1154443, 2308886, 3463329, 6926658, 10389987, 20779974]

約数ペア:

[(1, 20779974), (2, 10389987), (3, 6926658), (6, 3463329), (9, 2308886), (18, 1154443), (809, 25686), (1427, 14562), (1618, 12843), (2427, 8562), (2854, 7281), (4281, 4854)]