21292004

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{59809}}^1$

素因数の和:59902

約数の個数: 12

約数和(自身を含む): 37680300

約数和(自身を除く): 16388296

約数列:

[1, 2, 4, 89, 178, 356, 59809, 119618, 239236, 5323001, 10646002, 21292004]

約数ペア:

[(1, 21292004), (2, 10646002), (4, 5323001), (89, 239236), (178, 119618), (356, 59809)]