18270855

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 15275385

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 127, 139, 207, 345, 381, 417, 635, 695, 1035, 1143, 1251, 1905, 2085, 2921, 3197, 5715, 6255, 8763, 9591, 14605, 15985, 17653, 26289, 28773, 43815, 47955, 52959, 88265, 131445, 143865, 158877, 264795, 406019, 794385, 1218057, 2030095, 3654171, 6090285, 18270855]

約数ペア:

[(1, 18270855), (3, 6090285), (5, 3654171), (9, 2030095), (15, 1218057), (23, 794385), (45, 406019), (69, 264795), (115, 158877), (127, 143865), (139, 131445), (207, 88265), (345, 52959), (381, 47955), (417, 43815), (635, 28773), (695, 26289), (1035, 17653), (1143, 15985), (1251, 14605), (1905, 9591), (2085, 8763), (2921, 6255), (3197, 5715)]