221211208

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{6329}}^1$

素因数の和:6609

約数の個数: 32

約数和(自身を含む): 440947800

約数和(自身を除く): 219736592

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 257, 514, 1028, 2056, 4369, 6329, 8738, 12658, 17476, 25316, 34952, 50632, 107593, 215186, 430372, 860744, 1626553, 3253106, 6506212, 13012424, 27651401, 55302802, 110605604, 221211208]

約数ペア:

[(1, 221211208), (2, 110605604), (4, 55302802), (8, 27651401), (17, 13012424), (34, 6506212), (68, 3253106), (136, 1626553), (257, 860744), (514, 430372), (1028, 215186), (2056, 107593), (4369, 50632), (6329, 34952), (8738, 25316), (12658, 17476)]