21142265

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{683}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 26199936

約数和(自身を除く): 5057671

約数列:

[1, 5, 41, 151, 205, 683, 755, 3415, 6191, 28003, 30955, 103133, 140015, 515665, 4228453, 21142265]

約数ペア:

[(1, 21142265), (5, 4228453), (41, 515665), (151, 140015), (205, 103133), (683, 30955), (755, 28003), (3415, 6191)]