40890381

素因数分解:

$3^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{1993}}^1$

素因数の和:2980

約数の個数: 16

約数和(自身を含む): 62404224

約数和(自身を除く): 21513843

約数列:

[1, 3, 7, 21, 977, 1993, 2931, 5979, 6839, 13951, 20517, 41853, 1947161, 5841483, 13630127, 40890381]

約数ペア:

[(1, 40890381), (3, 13630127), (7, 5841483), (21, 1947161), (977, 41853), (1993, 20517), (2931, 13951), (5979, 6839)]