16641215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 22524480

約数和(自身を除く): 5883265

約数列:

[1, 5, 17, 29, 43, 85, 145, 157, 215, 493, 731, 785, 1247, 2465, 2669, 3655, 4553, 6235, 6751, 13345, 21199, 22765, 33755, 77401, 105995, 114767, 195779, 387005, 573835, 978895, 3328243, 16641215]

約数ペア:

[(1, 16641215), (5, 3328243), (17, 978895), (29, 573835), (43, 387005), (85, 195779), (145, 114767), (157, 105995), (215, 77401), (493, 33755), (731, 22765), (785, 21199), (1247, 13345), (2465, 6751), (2669, 6235), (3655, 4553)]