21537733

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:468

約数の個数: 16

約数和(自身を含む): 25159680

約数和(自身を除く): 3621947

約数列:

[1, 7, 89, 181, 191, 623, 1267, 1337, 16109, 16999, 34571, 112763, 118993, 241997, 3076819, 21537733]

約数ペア:

[(1, 21537733), (7, 3076819), (89, 241997), (181, 118993), (191, 112763), (623, 34571), (1267, 16999), (1337, 16109)]