72638919

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1009}}^1$

素因数の和:1455

約数の個数: 24

約数和(自身を含む): 110817200

約数和(自身を除く): 38178281

約数列:

[1, 3, 9, 19, 57, 171, 421, 1009, 1263, 3027, 3789, 7999, 9081, 19171, 23997, 57513, 71991, 172539, 424789, 1274367, 3823101, 8070991, 24212973, 72638919]

約数ペア:

[(1, 72638919), (3, 24212973), (9, 8070991), (19, 3823101), (57, 1274367), (171, 424789), (421, 172539), (1009, 71991), (1263, 57513), (3027, 23997), (3789, 19171), (7999, 9081)]