20878275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25307}}^1$

素因数の和:25331

約数の個数: 24

約数和(自身を含む): 37658304

約数和(自身を除く): 16780029

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25307, 75921, 126535, 278377, 379605, 632675, 835131, 1391885, 1898025, 4175655, 6959425, 20878275]

約数ペア:

[(1, 20878275), (3, 6959425), (5, 4175655), (11, 1898025), (15, 1391885), (25, 835131), (33, 632675), (55, 379605), (75, 278377), (165, 126535), (275, 75921), (825, 25307)]