20656268

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1423}}^1$

素因数の和:1637

約数の個数: 24

約数和(自身を含む): 38277120

約数和(自身を除く): 17620852

約数列:

[1, 2, 4, 19, 38, 76, 191, 382, 764, 1423, 2846, 3629, 5692, 7258, 14516, 27037, 54074, 108148, 271793, 543586, 1087172, 5164067, 10328134, 20656268]

約数ペア:

[(1, 20656268), (2, 10328134), (4, 5164067), (19, 1087172), (38, 543586), (76, 271793), (191, 108148), (382, 54074), (764, 27037), (1423, 14516), (2846, 7258), (3629, 5692)]