21130996

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{2131}}^1$

素因数の和:2239

約数の個数: 24

約数和(自身を含む): 38563616

約数和(自身を除く): 17432620

約数列:

[1, 2, 4, 37, 67, 74, 134, 148, 268, 2131, 2479, 4262, 4958, 8524, 9916, 78847, 142777, 157694, 285554, 315388, 571108, 5282749, 10565498, 21130996]

約数ペア:

[(1, 21130996), (2, 10565498), (4, 5282749), (37, 571108), (67, 315388), (74, 285554), (134, 157694), (148, 142777), (268, 78847), (2131, 9916), (2479, 8524), (4262, 4958)]