21442782020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1335167}}^1$

素因数の和:1335260

約数の個数: 48

約数和(自身を含む): 49796425728

約数和(自身を除く): 28353643708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 110, 146, 220, 292, 365, 730, 803, 1460, 1606, 3212, 4015, 8030, 16060, 1335167, 2670334, 5340668, 6675835, 13351670, 14686837, 26703340, 29373674, 58747348, 73434185, 97467191, 146868370, 194934382, 293736740, 389868764, 487335955, 974671910, 1072139101, 1949343820, 2144278202, 4288556404, 5360695505, 10721391010, 21442782020]

約数ペア:

[(1, 21442782020), (2, 10721391010), (4, 5360695505), (5, 4288556404), (10, 2144278202), (11, 1949343820), (20, 1072139101), (22, 974671910), (44, 487335955), (55, 389868764), (73, 293736740), (110, 194934382), (146, 146868370), (220, 97467191), (292, 73434185), (365, 58747348), (730, 29373674), (803, 26703340), (1460, 14686837), (1606, 13351670), (3212, 6675835), (4015, 5340668), (8030, 2670334), (16060, 1335167)]