216649503

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{26251}}^1$

素因数の和:26395

約数の個数: 24

約数和(自身を含む): 360387456

約数和(自身を除く): 143737953

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2751, 8253, 26251, 78753, 183757, 236259, 551271, 1653813, 3438881, 10316643, 24072167, 30949929, 72216501, 216649503]

約数ペア:

[(1, 216649503), (3, 72216501), (7, 30949929), (9, 24072167), (21, 10316643), (63, 3438881), (131, 1653813), (393, 551271), (917, 236259), (1179, 183757), (2751, 78753), (8253, 26251)]