21090244

素因数分解:

$2^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{4621}}^1$

素因数の和:4795

約数の個数: 24

約数和(自身を含む): 42448448

約数和(自身を除く): 21358204

約数列:

[1, 2, 4, 7, 14, 28, 163, 326, 652, 1141, 2282, 4564, 4621, 9242, 18484, 32347, 64694, 129388, 753223, 1506446, 3012892, 5272561, 10545122, 21090244]

約数ペア:

[(1, 21090244), (2, 10545122), (4, 5272561), (7, 3012892), (14, 1506446), (28, 753223), (163, 129388), (326, 64694), (652, 32347), (1141, 18484), (2282, 9242), (4564, 4621)]