18838975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2333}}^1$

素因数の和:2379

約数の個数: 24

約数和(自身を含む): 26047440

約数和(自身を除く): 7208465

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 2333, 8075, 11665, 39661, 44327, 58325, 198305, 221635, 753559, 991525, 1108175, 3767795, 18838975]

約数ペア:

[(1, 18838975), (5, 3767795), (17, 1108175), (19, 991525), (25, 753559), (85, 221635), (95, 198305), (323, 58325), (425, 44327), (475, 39661), (1615, 11665), (2333, 8075)]