21070257

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{9157}}^1$

素因数の和:9232

約数の個数: 16

約数和(自身を含む): 30770880

約数和(自身を除く): 9700623

約数列:

[1, 3, 13, 39, 59, 177, 767, 2301, 9157, 27471, 119041, 357123, 540263, 1620789, 7023419, 21070257]

約数ペア:

[(1, 21070257), (3, 7023419), (13, 1620789), (39, 540263), (59, 357123), (177, 119041), (767, 27471), (2301, 9157)]