20618571

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1\times {\mathrm{419}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 28224000

約数和(自身を除く): 7605429

約数列:

[1, 3, 47, 141, 349, 419, 1047, 1257, 16403, 19693, 49209, 59079, 146231, 438693, 6872857, 20618571]

約数ペア:

[(1, 20618571), (3, 6872857), (47, 438693), (141, 146231), (349, 59079), (419, 49209), (1047, 19693), (1257, 16403)]