215156678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{811}}^1$

素因数の和:1244

約数の個数: 32

約数和(自身を含む): 364815360

約数和(自身を除く): 149658682

約数列:

[1, 2, 11, 22, 31, 62, 341, 389, 682, 778, 811, 1622, 4279, 8558, 8921, 12059, 17842, 24118, 25141, 50282, 132649, 265298, 276551, 315479, 553102, 630958, 3470269, 6940538, 9779849, 19559698, 107578339, 215156678]

約数ペア:

[(1, 215156678), (2, 107578339), (11, 19559698), (22, 9779849), (31, 6940538), (62, 3470269), (341, 630958), (389, 553102), (682, 315479), (778, 276551), (811, 265298), (1622, 132649), (4279, 50282), (8558, 25141), (8921, 24118), (12059, 17842)]