21896589

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1187}}^1$

素因数の和:1257

約数の個数: 32

約数和(自身を含む): 35126784

約数和(自身を除く): 13230195

約数列:

[1, 3, 11, 13, 33, 39, 43, 129, 143, 429, 473, 559, 1187, 1419, 1677, 3561, 6149, 13057, 15431, 18447, 39171, 46293, 51041, 153123, 169741, 509223, 561451, 663533, 1684353, 1990599, 7298863, 21896589]

約数ペア:

[(1, 21896589), (3, 7298863), (11, 1990599), (13, 1684353), (33, 663533), (39, 561451), (43, 509223), (129, 169741), (143, 153123), (429, 51041), (473, 46293), (559, 39171), (1187, 18447), (1419, 15431), (1677, 13057), (3561, 6149)]