21000655202

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{2953}}^1\times {\mathrm{39953}}^1$

素因数の和:42997

約数の個数: 16

約数和(自身を含む): 31866511320

約数和(自身を除く): 10865856118

約数列:

[1, 2, 89, 178, 2953, 5906, 39953, 79906, 262817, 525634, 3555817, 7111634, 117981209, 235962418, 10500327601, 21000655202]

約数ペア:

[(1, 21000655202), (2, 10500327601), (89, 235962418), (178, 117981209), (2953, 7111634), (5906, 3555817), (39953, 525634), (79906, 262817)]