19640673

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:418

約数の個数: 36

約数和(自身を含む): 31640700

約数和(自身を除く): 12000027

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 169, 333, 349, 481, 507, 1047, 1443, 1521, 3141, 4329, 4537, 6253, 12913, 13611, 18759, 38739, 40833, 56277, 58981, 116217, 167869, 176943, 503607, 530829, 1510821, 2182297, 6546891, 19640673]

約数ペア:

[(1, 19640673), (3, 6546891), (9, 2182297), (13, 1510821), (37, 530829), (39, 503607), (111, 176943), (117, 167869), (169, 116217), (333, 58981), (349, 56277), (481, 40833), (507, 38739), (1047, 18759), (1443, 13611), (1521, 12913), (3141, 6253), (4329, 4537)]