19875807

素因数分解:

$3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1021}}^1$

素因数の和:1140

約数の個数: 32

約数和(自身を含む): 34012160

約数和(自身を除く): 14136353

約数列:

[1, 3, 7, 9, 21, 27, 63, 103, 189, 309, 721, 927, 1021, 2163, 2781, 3063, 6489, 7147, 9189, 19467, 21441, 27567, 64323, 105163, 192969, 315489, 736141, 946467, 2208423, 2839401, 6625269, 19875807]

約数ペア:

[(1, 19875807), (3, 6625269), (7, 2839401), (9, 2208423), (21, 946467), (27, 736141), (63, 315489), (103, 192969), (189, 105163), (309, 64323), (721, 27567), (927, 21441), (1021, 19467), (2163, 9189), (2781, 7147), (3063, 6489)]