21056680

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3533}}^1$

素因数の和:3693

約数の個数: 32

約数和(自身を含む): 47709000

約数和(自身を除く): 26652320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3533, 5960, 7066, 14132, 17665, 28264, 35330, 70660, 141320, 526417, 1052834, 2105668, 2632085, 4211336, 5264170, 10528340, 21056680]

約数ペア:

[(1, 21056680), (2, 10528340), (4, 5264170), (5, 4211336), (8, 2632085), (10, 2105668), (20, 1052834), (40, 526417), (149, 141320), (298, 70660), (596, 35330), (745, 28264), (1192, 17665), (1490, 14132), (2980, 7066), (3533, 5960)]