19864415

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{233}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 25861680

約数和(自身を除く): 5997265

約数列:

[1, 5, 17, 59, 85, 233, 289, 295, 1003, 1165, 1445, 3961, 5015, 13747, 17051, 19805, 67337, 68735, 85255, 233699, 336685, 1168495, 3972883, 19864415]

約数ペア:

[(1, 19864415), (5, 3972883), (17, 1168495), (59, 336685), (85, 233699), (233, 85255), (289, 68735), (295, 67337), (1003, 19805), (1165, 17051), (1445, 13747), (3961, 5015)]