39938913

素因数分解:

$3^4\times 7^1\times {\mathrm{70439}}^1$

素因数の和:70458

約数の個数: 20

約数和(自身を含む): 68185920

約数和(自身を除く): 28247007

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 70439, 211317, 493073, 633951, 1479219, 1901853, 4437657, 5705559, 13312971, 39938913]

約数ペア:

[(1, 39938913), (3, 13312971), (7, 5705559), (9, 4437657), (21, 1901853), (27, 1479219), (63, 633951), (81, 493073), (189, 211317), (567, 70439)]