21704516

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 38955840

約数和(自身を除く): 17251324

約数列:

[1, 2, 4, 67, 109, 134, 218, 268, 436, 743, 1486, 2972, 7303, 14606, 29212, 49781, 80987, 99562, 161974, 199124, 323948, 5426129, 10852258, 21704516]

約数ペア:

[(1, 21704516), (2, 10852258), (4, 5426129), (67, 323948), (109, 199124), (134, 161974), (218, 99562), (268, 80987), (436, 49781), (743, 29212), (1486, 14606), (2972, 7303)]