19007905

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 27498240

約数和(自身を除く): 8490335

約数列:

[1, 5, 7, 29, 35, 61, 145, 203, 305, 307, 427, 1015, 1535, 1769, 2135, 2149, 8845, 8903, 10745, 12383, 18727, 44515, 61915, 62321, 93635, 131089, 311605, 543083, 655445, 2715415, 3801581, 19007905]

約数ペア:

[(1, 19007905), (5, 3801581), (7, 2715415), (29, 655445), (35, 543083), (61, 311605), (145, 131089), (203, 93635), (305, 62321), (307, 61915), (427, 44515), (1015, 18727), (1535, 12383), (1769, 10745), (2135, 8903), (2149, 8845)]