19946385

素因数分解:

$3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2081}}^1$

素因数の和:2166

約数の個数: 32

約数和(自身を含む): 35976960

約数和(自身を除く): 16030575

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 135, 213, 355, 639, 1065, 1917, 2081, 3195, 6243, 9585, 10405, 18729, 31215, 56187, 93645, 147751, 280935, 443253, 738755, 1329759, 2216265, 3989277, 6648795, 19946385]

約数ペア:

[(1, 19946385), (3, 6648795), (5, 3989277), (9, 2216265), (15, 1329759), (27, 738755), (45, 443253), (71, 280935), (135, 147751), (213, 93645), (355, 56187), (639, 31215), (1065, 18729), (1917, 10405), (2081, 9585), (3195, 6243)]