20490878

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{5273}}^1$

素因数の和:5371

約数の個数: 16

約数和(自身を含む): 32276880

約数和(自身を除く): 11786002

約数列:

[1, 2, 29, 58, 67, 134, 1943, 3886, 5273, 10546, 152917, 305834, 353291, 706582, 10245439, 20490878]

約数ペア:

[(1, 20490878), (2, 10245439), (29, 706582), (58, 353291), (67, 305834), (134, 152917), (1943, 10546), (3886, 5273)]