19784505

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1429}}^1$

素因数の和:1521

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 14810055

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 923, 1065, 1429, 2769, 4287, 4615, 7145, 13845, 18577, 21435, 55731, 92885, 101459, 278655, 304377, 507295, 1318967, 1521885, 3956901, 6594835, 19784505]

約数ペア:

[(1, 19784505), (3, 6594835), (5, 3956901), (13, 1521885), (15, 1318967), (39, 507295), (65, 304377), (71, 278655), (195, 101459), (213, 92885), (355, 55731), (923, 21435), (1065, 18577), (1429, 13845), (2769, 7145), (4287, 4615)]