21037790

素因数分解:

$2^1\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{1709}}^1$

素因数の和:2947

約数の個数: 16

約数和(自身を含む): 37920960

約数和(自身を除く): 16883170

約数列:

[1, 2, 5, 10, 1231, 1709, 2462, 3418, 6155, 8545, 12310, 17090, 2103779, 4207558, 10518895, 21037790]

約数ペア:

[(1, 21037790), (2, 10518895), (5, 4207558), (10, 2103779), (1231, 17090), (1709, 12310), (2462, 8545), (3418, 6155)]