17916145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 24796800

約数和(自身を除く): 6880655

約数列:

[1, 5, 13, 19, 65, 89, 95, 163, 247, 445, 815, 1157, 1235, 1691, 2119, 3097, 5785, 8455, 10595, 14507, 15485, 21983, 40261, 72535, 109915, 188591, 201305, 275633, 942955, 1378165, 3583229, 17916145]

約数ペア:

[(1, 17916145), (5, 3583229), (13, 1378165), (19, 942955), (65, 275633), (89, 201305), (95, 188591), (163, 109915), (247, 72535), (445, 40261), (815, 21983), (1157, 15485), (1235, 14507), (1691, 10595), (2119, 8455), (3097, 5785)]