18381215

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{1163}}^1$

素因数の和:1306

約数の個数: 16

約数和(自身を含む): 23047200

約数和(自身を除く): 4665985

約数列:

[1, 5, 29, 109, 145, 545, 1163, 3161, 5815, 15805, 33727, 126767, 168635, 633835, 3676243, 18381215]

約数ペア:

[(1, 18381215), (5, 3676243), (29, 633835), (109, 168635), (145, 126767), (545, 33727), (1163, 15805), (3161, 5815)]