21065122

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7433}}^1$

素因数の和:7557

約数の個数: 16

約数和(自身を含む): 34345080

約数和(自身を除く): 13279958

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 7433, 14866, 96629, 193258, 810197, 1620394, 10532561, 21065122]

約数ペア:

[(1, 21065122), (2, 10532561), (13, 1620394), (26, 810197), (109, 193258), (218, 96629), (1417, 14866), (2834, 7433)]