19729575

素因数分解:

$3^4\times 5^2\times {\mathrm{9743}}^1$

素因数の和:9765

約数の個数: 30

約数和(自身を含む): 36549744

約数和(自身を除く): 16820169

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 9743, 29229, 48715, 87687, 146145, 243575, 263061, 438435, 730725, 789183, 1315305, 2192175, 3945915, 6576525, 19729575]

約数ペア:

[(1, 19729575), (3, 6576525), (5, 3945915), (9, 2192175), (15, 1315305), (25, 789183), (27, 730725), (45, 438435), (75, 263061), (81, 243575), (135, 146145), (225, 87687), (405, 48715), (675, 29229), (2025, 9743)]