211942227

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{2971}}^1$

素因数の和:3103

約数の個数: 32

約数和(自身を含む): 334766080

約数和(自身を除く): 122823853

約数列:

[1, 3, 7, 21, 43, 79, 129, 237, 301, 553, 903, 1659, 2971, 3397, 8913, 10191, 20797, 23779, 62391, 71337, 127753, 234709, 383259, 704127, 894271, 1642963, 2682813, 4928889, 10092487, 30277461, 70647409, 211942227]

約数ペア:

[(1, 211942227), (3, 70647409), (7, 30277461), (21, 10092487), (43, 4928889), (79, 2682813), (129, 1642963), (237, 894271), (301, 704127), (553, 383259), (903, 234709), (1659, 127753), (2971, 71337), (3397, 62391), (8913, 23779), (10191, 20797)]