20979333

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{251}}^2$

素因数の和:545

約数の個数: 18

約数和(自身を含む): 31246982

約数和(自身を除く): 10267649

約数列:

[1, 3, 9, 37, 111, 251, 333, 753, 2259, 9287, 27861, 63001, 83583, 189003, 567009, 2331037, 6993111, 20979333]

約数ペア:

[(1, 20979333), (3, 6993111), (9, 2331037), (37, 567009), (111, 189003), (251, 83583), (333, 63001), (753, 27861), (2259, 9287)]