21155057

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6701}}^1$

素因数の和:6760

約数の個数: 16

約数和(自身を含む): 27022464

約数和(自身を除く): 5867407

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6701, 46907, 73711, 274741, 515977, 1923187, 3022151, 21155057]

約数ペア:

[(1, 21155057), (7, 3022151), (11, 1923187), (41, 515977), (77, 274741), (287, 73711), (451, 46907), (3157, 6701)]