21000415191

素因数分解:

$3^1\times 7^1\times {\mathrm{9661}}^1\times {\mathrm{103511}}^1$

素因数の和:113182

約数の個数: 16

約数和(自身を含む): 32004254208

約数和(自身を除く): 11003839017

約数列:

[1, 3, 7, 21, 9661, 28983, 67627, 103511, 202881, 310533, 724577, 2173731, 1000019771, 3000059313, 7000138397, 21000415191]

約数ペア:

[(1, 21000415191), (3, 7000138397), (7, 3000059313), (21, 1000019771), (9661, 2173731), (28983, 724577), (67627, 310533), (103511, 202881)]