20782928

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12611}}^1$

素因数の和:12722

約数の個数: 20

約数和(自身を含む): 40661088

約数和(自身を除く): 19878160

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12611, 25222, 50444, 100888, 201776, 1298933, 2597866, 5195732, 10391464, 20782928]

約数ペア:

[(1, 20782928), (2, 10391464), (4, 5195732), (8, 2597866), (16, 1298933), (103, 201776), (206, 100888), (412, 50444), (824, 25222), (1648, 12611)]