28218589

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{2857}}^1$

素因数の和:2964

約数の個数: 16

約数和(自身を含む): 34570368

約数和(自身を除く): 6351779

約数列:

[1, 7, 17, 83, 119, 581, 1411, 2857, 9877, 19999, 48569, 237131, 339983, 1659917, 4031227, 28218589]

約数ペア:

[(1, 28218589), (7, 4031227), (17, 1659917), (83, 339983), (119, 237131), (581, 48569), (1411, 19999), (2857, 9877)]