221707511

素因数分解:

${\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{991}}^1$

素因数の和:1222

約数の個数: 16

約数和(自身を含む): 236556288

約数和(自身を除く): 14848777

約数列:

[1, 23, 71, 137, 991, 1633, 3151, 9727, 22793, 70361, 135767, 223721, 1618303, 3122641, 9639457, 221707511]

約数ペア:

[(1, 221707511), (23, 9639457), (71, 3122641), (137, 1618303), (991, 223721), (1633, 135767), (3151, 70361), (9727, 22793)]