21864515

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{541}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 26926560

約数和(自身を除く): 5062045

約数列:

[1, 5, 59, 137, 295, 541, 685, 2705, 8083, 31919, 40415, 74117, 159595, 370585, 4372903, 21864515]

約数ペア:

[(1, 21864515), (5, 4372903), (59, 370585), (137, 159595), (295, 74117), (541, 40415), (685, 31919), (2705, 8083)]