20137569

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{971}}^1$

素因数の和:1228

約数の個数: 16

約数和(自身を含む): 27869184

約数和(自身を除く): 7731615

約数列:

[1, 3, 31, 93, 223, 669, 971, 2913, 6913, 20739, 30101, 90303, 216533, 649599, 6712523, 20137569]

約数ペア:

[(1, 20137569), (3, 6712523), (31, 649599), (93, 216533), (223, 90303), (669, 30101), (971, 20739), (2913, 6913)]