21231078

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{7481}}^1$

素因数の和:7540

約数の個数: 32

約数和(自身を含む): 47405952

約数和(自身を除く): 26174874

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 129, 258, 473, 946, 1419, 2838, 7481, 14962, 22443, 44886, 82291, 164582, 246873, 321683, 493746, 643366, 965049, 1930098, 3538513, 7077026, 10615539, 21231078]

約数ペア:

[(1, 21231078), (2, 10615539), (3, 7077026), (6, 3538513), (11, 1930098), (22, 965049), (33, 643366), (43, 493746), (66, 321683), (86, 246873), (129, 164582), (258, 82291), (473, 44886), (946, 22443), (1419, 14962), (2838, 7481)]