20752417

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{821}}^1$

素因数の和:1008

約数の個数: 16

約数和(自身を含む): 24936192

約数和(自身を除く): 4183775

約数列:

[1, 7, 23, 157, 161, 821, 1099, 3611, 5747, 18883, 25277, 128897, 132181, 902279, 2964631, 20752417]

約数ペア:

[(1, 20752417), (7, 2964631), (23, 902279), (157, 132181), (161, 128897), (821, 25277), (1099, 18883), (3611, 5747)]