20898591

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{6679}}^1$

素因数の和:6838

約数の個数: 16

約数和(自身を含む): 32064000

約数和(自身を除く): 11165409

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 6679, 20037, 46753, 140259, 995171, 2985513, 6966197, 20898591]

約数ペア:

[(1, 20898591), (3, 6966197), (7, 2985513), (21, 995171), (149, 140259), (447, 46753), (1043, 20037), (3129, 6679)]