668875179

素因数分解:

$3^1\times 7^1\times {\mathrm{1489}}^1\times {\mathrm{21391}}^1$

素因数の和:22890

約数の個数: 16

約数和(自身を含む): 1019970560

約数和(自身を除く): 351095381

約数列:

[1, 3, 7, 21, 1489, 4467, 10423, 21391, 31269, 64173, 149737, 449211, 31851199, 95553597, 222958393, 668875179]

約数ペア:

[(1, 668875179), (3, 222958393), (7, 95553597), (21, 31851199), (1489, 449211), (4467, 149737), (10423, 64173), (21391, 31269)]