21898152865

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1\times {\mathrm{211}}^1\times {\mathrm{997}}^1$

素因数の和:1513

約数の個数: 32

約数和(自身を含む): 26810910720

約数和(自身を除く): 4912757855

約数列:

[1, 5, 109, 191, 211, 545, 955, 997, 1055, 4985, 20819, 22999, 40301, 104095, 108673, 114995, 190427, 201505, 210367, 543365, 952135, 1051835, 4392809, 20756543, 21964045, 22930003, 40180097, 103782715, 114650015, 200900485, 4379630573, 21898152865]

約数ペア:

[(1, 21898152865), (5, 4379630573), (109, 200900485), (191, 114650015), (211, 103782715), (545, 40180097), (955, 22930003), (997, 21964045), (1055, 20756543), (4985, 4392809), (20819, 1051835), (22999, 952135), (40301, 543365), (104095, 210367), (108673, 201505), (114995, 190427)]