20517702

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{947}}^1$

素因数の和:1132

約数の個数: 32

約数和(自身を含む): 43137792

約数和(自身を除く): 22620090

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 157, 314, 471, 942, 947, 1894, 2841, 3611, 5682, 7222, 10833, 21666, 21781, 43562, 65343, 130686, 148679, 297358, 446037, 892074, 3419617, 6839234, 10258851, 20517702]

約数ペア:

[(1, 20517702), (2, 10258851), (3, 6839234), (6, 3419617), (23, 892074), (46, 446037), (69, 297358), (138, 148679), (157, 130686), (314, 65343), (471, 43562), (942, 21781), (947, 21666), (1894, 10833), (2841, 7222), (3611, 5682)]