19420415

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2557}}^1$

素因数の和:2607

約数の個数: 24

約数和(自身を含む): 27994752

約数和(自身を除く): 8574337

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 2557, 7595, 12785, 17899, 79267, 89495, 125293, 396335, 554869, 626465, 2774345, 3884083, 19420415]

約数ペア:

[(1, 19420415), (5, 3884083), (7, 2774345), (31, 626465), (35, 554869), (49, 396335), (155, 125293), (217, 89495), (245, 79267), (1085, 17899), (1519, 12785), (2557, 7595)]