21271844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2671}}^1$

素因数の和:2867

約数の個数: 24

約数和(自身を含む): 40849536

約数和(自身を除く): 19577692

約数列:

[1, 2, 4, 11, 22, 44, 181, 362, 724, 1991, 2671, 3982, 5342, 7964, 10684, 29381, 58762, 117524, 483451, 966902, 1933804, 5317961, 10635922, 21271844]

約数ペア:

[(1, 21271844), (2, 10635922), (4, 5317961), (11, 1933804), (22, 966902), (44, 483451), (181, 117524), (362, 58762), (724, 29381), (1991, 10684), (2671, 7964), (3982, 5342)]