21453475

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{233}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 27855360

約数和(自身を除く): 6401885

約数列:

[1, 5, 25, 29, 127, 145, 233, 635, 725, 1165, 3175, 3683, 5825, 6757, 18415, 29591, 33785, 92075, 147955, 168925, 739775, 858139, 4290695, 21453475]

約数ペア:

[(1, 21453475), (5, 4290695), (25, 858139), (29, 739775), (127, 168925), (145, 147955), (233, 92075), (635, 33785), (725, 29591), (1165, 18415), (3175, 6757), (3683, 5825)]