17788885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 24026112

約数和(自身を除く): 6237227

約数列:

[1, 5, 17, 31, 43, 85, 155, 157, 215, 527, 731, 785, 1333, 2635, 2669, 3655, 4867, 6665, 6751, 13345, 22661, 24335, 33755, 82739, 113305, 114767, 209281, 413695, 573835, 1046405, 3557777, 17788885]

約数ペア:

[(1, 17788885), (5, 3557777), (17, 1046405), (31, 573835), (43, 413695), (85, 209281), (155, 114767), (157, 113305), (215, 82739), (527, 33755), (731, 24335), (785, 22661), (1333, 13345), (2635, 6751), (2669, 6665), (3655, 4867)]