21900478

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{2593}}^1$

素因数の和:2739

約数の個数: 16

約数和(自身を含む): 33991776

約数和(自身を除く): 12091298

約数列:

[1, 2, 41, 82, 103, 206, 2593, 4223, 5186, 8446, 106313, 212626, 267079, 534158, 10950239, 21900478]

約数ペア:

[(1, 21900478), (2, 10950239), (41, 534158), (82, 267079), (103, 212626), (206, 106313), (2593, 8446), (4223, 5186)]