21312686

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1\times {\mathrm{907}}^1$

素因数の和:1319

約数の個数: 16

約数和(自身を含む): 33123840

約数和(自身を除く): 11811154

約数列:

[1, 2, 31, 62, 379, 758, 907, 1814, 11749, 23498, 28117, 56234, 343753, 687506, 10656343, 21312686]

約数ペア:

[(1, 21312686), (2, 10656343), (31, 687506), (62, 343753), (379, 56234), (758, 28117), (907, 23498), (1814, 11749)]