20813265

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2213}}^1$

素因数の和:2254

約数の個数: 48

約数和(自身を含む): 41446080

約数和(自身を除く): 20632815

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 2213, 3135, 6639, 9405, 11065, 19917, 24343, 33195, 42047, 73029, 99585, 121715, 126141, 210235, 219087, 365145, 378423, 462517, 630705, 1095435, 1387551, 1892115, 2312585, 4162653, 6937755, 20813265]

約数ペア:

[(1, 20813265), (3, 6937755), (5, 4162653), (9, 2312585), (11, 1892115), (15, 1387551), (19, 1095435), (33, 630705), (45, 462517), (55, 378423), (57, 365145), (95, 219087), (99, 210235), (165, 126141), (171, 121715), (209, 99585), (285, 73029), (495, 42047), (627, 33195), (855, 24343), (1045, 19917), (1881, 11065), (2213, 9405), (3135, 6639)]