21568325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2671}}^1$

素因数の和:2717

約数の個数: 24

約数和(自身を含む): 29819520

約数和(自身を除く): 8251195

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 2671, 8075, 13355, 45407, 50749, 66775, 227035, 253745, 862733, 1135175, 1268725, 4313665, 21568325]

約数ペア:

[(1, 21568325), (5, 4313665), (17, 1268725), (19, 1135175), (25, 862733), (85, 253745), (95, 227035), (323, 66775), (425, 50749), (475, 45407), (1615, 13355), (2671, 8075)]