21987798

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{523519}}^1$

素因数の和:523531

約数の個数: 16

約数和(自身を含む): 50257920

約数和(自身を除く): 28270122

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 523519, 1047038, 1570557, 3141114, 3664633, 7329266, 10993899, 21987798]

約数ペア:

[(1, 21987798), (2, 10993899), (3, 7329266), (6, 3664633), (7, 3141114), (14, 1570557), (21, 1047038), (42, 523519)]