20067775

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8821}}^1$

素因数の和:8851

約数の個数: 24

約数和(自身を含む): 30629984

約数和(自身を除く): 10562209

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 8821, 44105, 61747, 114673, 220525, 308735, 573365, 802711, 1543675, 2866825, 4013555, 20067775]

約数ペア:

[(1, 20067775), (5, 4013555), (7, 2866825), (13, 1543675), (25, 802711), (35, 573365), (65, 308735), (91, 220525), (175, 114673), (325, 61747), (455, 44105), (2275, 8821)]