18226915

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 26210304

約数和(自身を除く): 7983389

約数列:

[1, 5, 7, 31, 35, 107, 155, 157, 217, 535, 749, 785, 1085, 1099, 3317, 3745, 4867, 5495, 16585, 16799, 23219, 24335, 34069, 83995, 116095, 117593, 170345, 520769, 587965, 2603845, 3645383, 18226915]

約数ペア:

[(1, 18226915), (5, 3645383), (7, 2603845), (31, 587965), (35, 520769), (107, 170345), (155, 117593), (157, 116095), (217, 83995), (535, 34069), (749, 24335), (785, 23219), (1085, 16799), (1099, 16585), (3317, 5495), (3745, 4867)]