20921159518

素因数分解:

$2^1\times 7^1\times {\mathrm{1559}}^1\times {\mathrm{958543}}^1$

素因数の和:960111

約数の個数: 16

約数和(自身を含む): 35887887360

約数和(自身を除く): 14966727842

約数列:

[1, 2, 7, 14, 1559, 3118, 10913, 21826, 958543, 1917086, 6709801, 13419602, 1494368537, 2988737074, 10460579759, 20921159518]

約数ペア:

[(1, 20921159518), (2, 10460579759), (7, 2988737074), (14, 1494368537), (1559, 13419602), (3118, 6709801), (10913, 1917086), (21826, 958543)]