21480505

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{1237}}^1$

素因数の和:1416

約数の個数: 16

約数和(自身を含む): 27097344

約数和(自身を除く): 5616839

約数列:

[1, 5, 23, 115, 151, 755, 1237, 3473, 6185, 17365, 28451, 142255, 186787, 933935, 4296101, 21480505]

約数ペア:

[(1, 21480505), (5, 4296101), (23, 933935), (115, 186787), (151, 142255), (755, 28451), (1237, 17365), (3473, 6185)]