21078510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17137}}^1$

素因数の和:17188

約数の個数: 32

約数和(自身を含む): 51825312

約数和(自身を除く): 30746802

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 205, 246, 410, 615, 1230, 17137, 34274, 51411, 85685, 102822, 171370, 257055, 514110, 702617, 1405234, 2107851, 3513085, 4215702, 7026170, 10539255, 21078510]

約数ペア:

[(1, 21078510), (2, 10539255), (3, 7026170), (5, 4215702), (6, 3513085), (10, 2107851), (15, 1405234), (30, 702617), (41, 514110), (82, 257055), (123, 171370), (205, 102822), (246, 85685), (410, 51411), (615, 34274), (1230, 17137)]