20885902

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{1531}}^1$

素因数の和:1911

約数の個数: 16

約数和(自身を含む): 33091200

約数和(自身を除く): 12205298

約数列:

[1, 2, 19, 38, 359, 718, 1531, 3062, 6821, 13642, 29089, 58178, 549629, 1099258, 10442951, 20885902]

約数ペア:

[(1, 20885902), (2, 10442951), (19, 1099258), (38, 549629), (359, 58178), (718, 29089), (1531, 13642), (3062, 6821)]