20195903

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5413}}^1$

素因数の和:5474

約数の個数: 16

約数和(自身を含む): 25467456

約数和(自身を除く): 5271553

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 5413, 37891, 70369, 221933, 492583, 1553531, 2885129, 20195903]

約数ペア:

[(1, 20195903), (7, 2885129), (13, 1553531), (41, 492583), (91, 221933), (287, 70369), (533, 37891), (3731, 5413)]