138195519

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{2129}}^1$

素因数の和:2431

約数の個数: 32

約数和(自身を含む): 230653440

約数和(自身を除く): 92457921

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 281, 843, 1967, 2129, 3091, 5901, 6387, 9273, 14903, 21637, 23419, 44709, 64911, 70257, 163933, 491799, 598249, 1794747, 4187743, 6580739, 12563229, 19742217, 46065173, 138195519]

約数ペア:

[(1, 138195519), (3, 46065173), (7, 19742217), (11, 12563229), (21, 6580739), (33, 4187743), (77, 1794747), (231, 598249), (281, 491799), (843, 163933), (1967, 70257), (2129, 64911), (3091, 44709), (5901, 23419), (6387, 21637), (9273, 14903)]