21805611

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{5857}}^1$

素因数の和:5950

約数の個数: 16

約数和(自身を含む): 31211424

約数和(自身を除く): 9405813

約数列:

[1, 3, 17, 51, 73, 219, 1241, 3723, 5857, 17571, 99569, 298707, 427561, 1282683, 7268537, 21805611]

約数ペア:

[(1, 21805611), (3, 7268537), (17, 1282683), (51, 427561), (73, 298707), (219, 99569), (1241, 17571), (3723, 5857)]