53280021

素因数分解:

$3^1\times {\mathrm{173}}^1\times {\mathrm{251}}^1\times {\mathrm{409}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 71910720

約数和(自身を除く): 18630699

約数列:

[1, 3, 173, 251, 409, 519, 753, 1227, 43423, 70757, 102659, 130269, 212271, 307977, 17760007, 53280021]

約数ペア:

[(1, 53280021), (3, 17760007), (173, 307977), (251, 212271), (409, 130269), (519, 102659), (753, 70757), (1227, 43423)]