21547535

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{491}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 26497152

約数和(自身を除く): 4949617

約数列:

[1, 5, 67, 131, 335, 491, 655, 2455, 8777, 32897, 43885, 64321, 164485, 321605, 4309507, 21547535]

約数ペア:

[(1, 21547535), (5, 4309507), (67, 321605), (131, 164485), (335, 64321), (491, 43885), (655, 32897), (2455, 8777)]