21102580

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28517}}^1$

素因数の和:28563

約数の個数: 24

約数和(自身を含む): 45514728

約数和(自身を除く): 24412148

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28517, 57034, 114068, 142585, 285170, 570340, 1055129, 2110258, 4220516, 5275645, 10551290, 21102580]

約数ペア:

[(1, 21102580), (2, 10551290), (4, 5275645), (5, 4220516), (10, 2110258), (20, 1055129), (37, 570340), (74, 285170), (148, 142585), (185, 114068), (370, 57034), (740, 28517)]