19970145

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3793}}^1$

素因数の和:3823

約数の個数: 40

約数和(自身を含む): 38562216

約数和(自身を除く): 18592071

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 3793, 5265, 11379, 18965, 34137, 49309, 56895, 102411, 147927, 170685, 246545, 307233, 443781, 512055, 739635, 1331343, 1536165, 2218905, 3994029, 6656715, 19970145]

約数ペア:

[(1, 19970145), (3, 6656715), (5, 3994029), (9, 2218905), (13, 1536165), (15, 1331343), (27, 739635), (39, 512055), (45, 443781), (65, 307233), (81, 246545), (117, 170685), (135, 147927), (195, 102411), (351, 56895), (405, 49309), (585, 34137), (1053, 18965), (1755, 11379), (3793, 5265)]