20561502

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263609}}^1$

素因数の和:263627

約数の個数: 16

約数和(自身を含む): 44286480

約数和(自身を除く): 23724978

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 263609, 527218, 790827, 1581654, 3426917, 6853834, 10280751, 20561502]

約数ペア:

[(1, 20561502), (2, 10280751), (3, 6853834), (6, 3426917), (13, 1581654), (26, 790827), (39, 527218), (78, 263609)]