18531370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{12959}}^1$

素因数の和:12990

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 20659670

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 12959, 25918, 64795, 129590, 142549, 168467, 285098, 336934, 712745, 842335, 1425490, 1684670, 1853137, 3706274, 9265685, 18531370]

約数ペア:

[(1, 18531370), (2, 9265685), (5, 3706274), (10, 1853137), (11, 1684670), (13, 1425490), (22, 842335), (26, 712745), (55, 336934), (65, 285098), (110, 168467), (130, 142549), (143, 129590), (286, 64795), (715, 25918), (1430, 12959)]