21568173

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{839}}^1$

素因数の和:913

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 12300627

約数列:

[1, 3, 11, 19, 33, 41, 57, 123, 209, 451, 627, 779, 839, 1353, 2337, 2517, 8569, 9229, 15941, 25707, 27687, 34399, 47823, 103197, 175351, 378389, 526053, 653581, 1135167, 1960743, 7189391, 21568173]

約数ペア:

[(1, 21568173), (3, 7189391), (11, 1960743), (19, 1135167), (33, 653581), (41, 526053), (57, 378389), (123, 175351), (209, 103197), (451, 47823), (627, 34399), (779, 27687), (839, 25707), (1353, 15941), (2337, 9229), (2517, 8569)]