19959956

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{1451}}^1$

素因数の和:1655

約数の個数: 24

約数和(自身を含む): 36996960

約数和(自身を除く): 17037004

約数列:

[1, 2, 4, 19, 38, 76, 181, 362, 724, 1451, 2902, 3439, 5804, 6878, 13756, 27569, 55138, 110276, 262631, 525262, 1050524, 4989989, 9979978, 19959956]

約数ペア:

[(1, 19959956), (2, 9979978), (4, 4989989), (19, 1050524), (38, 525262), (76, 262631), (181, 110276), (362, 55138), (724, 27569), (1451, 13756), (2902, 6878), (3439, 5804)]