21874401

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 11833119

約数列:

[1, 3, 9, 27, 43, 83, 129, 227, 249, 387, 681, 747, 1161, 2043, 2241, 3569, 6129, 9761, 10707, 18841, 29283, 32121, 56523, 87849, 96363, 169569, 263547, 508707, 810163, 2430489, 7291467, 21874401]

約数ペア:

[(1, 21874401), (3, 7291467), (9, 2430489), (27, 810163), (43, 508707), (83, 263547), (129, 169569), (227, 96363), (249, 87849), (387, 56523), (681, 32121), (747, 29283), (1161, 18841), (2043, 10707), (2241, 9761), (3569, 6129)]