20742471

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1201}}^1$

素因数の和:1327

約数の個数: 24

約数和(自身を含む): 31877040

約数和(自身を除く): 11134569

約数列:

[1, 3, 9, 19, 57, 101, 171, 303, 909, 1201, 1919, 3603, 5757, 10809, 17271, 22819, 68457, 121301, 205371, 363903, 1091709, 2304719, 6914157, 20742471]

約数ペア:

[(1, 20742471), (3, 6914157), (9, 2304719), (19, 1091709), (57, 363903), (101, 205371), (171, 121301), (303, 68457), (909, 22819), (1201, 17271), (1919, 10809), (3603, 5757)]