21649585

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{523}}^1$

素因数の和:1032

約数の個数: 16

約数和(自身を含む): 27616896

約数和(自身を除く): 5967311

約数列:

[1, 5, 17, 85, 487, 523, 2435, 2615, 8279, 8891, 41395, 44455, 254701, 1273505, 4329917, 21649585]

約数ペア:

[(1, 21649585), (5, 4329917), (17, 1273505), (85, 254701), (487, 44455), (523, 41395), (2435, 8891), (2615, 8279)]