19850509

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5381}}^1$

素因数の和:5436

約数の個数: 16

約数和(自身を含む): 24800256

約数和(自身を除く): 4949747

約数列:

[1, 7, 17, 31, 119, 217, 527, 3689, 5381, 37667, 91477, 166811, 640339, 1167677, 2835787, 19850509]

約数ペア:

[(1, 19850509), (7, 2835787), (17, 1167677), (31, 640339), (119, 166811), (217, 91477), (527, 37667), (3689, 5381)]