19737575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5521}}^1$

素因数の和:5555

約数の個数: 24

約数和(自身を含む): 28758576

約数和(自身を除く): 9021001

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 5521, 27605, 60731, 71773, 138025, 303655, 358865, 789503, 1518275, 1794325, 3947515, 19737575]

約数ペア:

[(1, 19737575), (5, 3947515), (11, 1794325), (13, 1518275), (25, 789503), (55, 358865), (65, 303655), (143, 138025), (275, 71773), (325, 60731), (715, 27605), (3575, 5521)]