20705241

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{887}}^1$

素因数の和:1172

約数の個数: 16

約数和(自身を含む): 28643328

約数和(自身を除く): 7938087

約数列:

[1, 3, 31, 93, 251, 753, 887, 2661, 7781, 23343, 27497, 82491, 222637, 667911, 6901747, 20705241]

約数ペア:

[(1, 20705241), (3, 6901747), (31, 667911), (93, 222637), (251, 82491), (753, 27497), (887, 23343), (2661, 7781)]