217298685

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{1493}}^1$

素因数の和:1845

約数の個数: 32

約数和(自身を含む): 360281088

約数和(自身を除く): 142982403

約数列:

[1, 3, 5, 15, 31, 93, 155, 313, 465, 939, 1493, 1565, 4479, 4695, 7465, 9703, 22395, 29109, 46283, 48515, 138849, 145545, 231415, 467309, 694245, 1401927, 2336545, 7009635, 14486579, 43459737, 72432895, 217298685]

約数ペア:

[(1, 217298685), (3, 72432895), (5, 43459737), (15, 14486579), (31, 7009635), (93, 2336545), (155, 1401927), (313, 694245), (465, 467309), (939, 231415), (1493, 145545), (1565, 138849), (4479, 48515), (4695, 46283), (7465, 29109), (9703, 22395)]