20782685

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2347}}^1$

素因数の和:2393

約数の個数: 32

約数和(自身を含む): 32458752

約数和(自身を除く): 11676067

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 161, 253, 385, 805, 1265, 1771, 2347, 8855, 11735, 16429, 25817, 53981, 82145, 129085, 180719, 269905, 377867, 593791, 903595, 1889335, 2968955, 4156537, 20782685]

約数ペア:

[(1, 20782685), (5, 4156537), (7, 2968955), (11, 1889335), (23, 903595), (35, 593791), (55, 377867), (77, 269905), (115, 180719), (161, 129085), (253, 82145), (385, 53981), (805, 25817), (1265, 16429), (1771, 11735), (2347, 8855)]