388143

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:175

約数の個数: 24

約数和(自身を含む): 657696

約数和(自身を除く): 269553

約数列:

[1, 3, 7, 9, 21, 61, 63, 101, 183, 303, 427, 549, 707, 909, 1281, 2121, 3843, 6161, 6363, 18483, 43127, 55449, 129381, 388143]

約数ペア:

[(1, 388143), (3, 129381), (7, 55449), (9, 43127), (21, 18483), (61, 6363), (63, 6161), (101, 3843), (183, 2121), (303, 1281), (427, 909), (549, 707)]