21511371

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{44537}}^1$

素因数の和:44570

約数の個数: 16

約数和(自身を含む): 34205184

約数和(自身を除く): 12693813

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 44537, 133611, 311759, 935277, 1024351, 3073053, 7170457, 21511371]

約数ペア:

[(1, 21511371), (3, 7170457), (7, 3073053), (21, 1024351), (23, 935277), (69, 311759), (161, 133611), (483, 44537)]