28787703

素因数分解:

$3^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{3617}}^1$

素因数の和:4006

約数の個数: 16

約数和(自身を含む): 43994880

約数和(自身を除く): 15207177

約数列:

[1, 3, 7, 21, 379, 1137, 2653, 3617, 7959, 10851, 25319, 75957, 1370843, 4112529, 9595901, 28787703]

約数ペア:

[(1, 28787703), (3, 9595901), (7, 4112529), (21, 1370843), (379, 75957), (1137, 25319), (2653, 10851), (3617, 7959)]