18421905

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 30735360

約数和(自身を除く): 12313455

約数列:

[1, 3, 5, 15, 31, 93, 155, 173, 229, 465, 519, 687, 865, 1145, 2595, 3435, 5363, 7099, 16089, 21297, 26815, 35495, 39617, 80445, 106485, 118851, 198085, 594255, 1228127, 3684381, 6140635, 18421905]

約数ペア:

[(1, 18421905), (3, 6140635), (5, 3684381), (15, 1228127), (31, 594255), (93, 198085), (155, 118851), (173, 106485), (229, 80445), (465, 39617), (519, 35495), (687, 26815), (865, 21297), (1145, 16089), (2595, 7099), (3435, 5363)]