20218480497

素因数分解:

$3^3\times {\mathrm{6781}}^1\times {\mathrm{110431}}^1$

素因数の和:117221

約数の個数: 16

約数和(自身を含む): 29957992960

約数和(自身を除く): 9739512463

約数列:

[1, 3, 9, 27, 6781, 20343, 61029, 110431, 183087, 331293, 993879, 2981637, 748832611, 2246497833, 6739493499, 20218480497]

約数ペア:

[(1, 20218480497), (3, 6739493499), (9, 2246497833), (27, 748832611), (6781, 2981637), (20343, 993879), (61029, 331293), (110431, 183087)]