287219763

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{15901}}^1$

素因数の和:16136

約数の個数: 20

約数和(自身を含む): 431007808

約数和(自身を除く): 143788045

約数列:

[1, 3, 9, 27, 81, 223, 669, 2007, 6021, 15901, 18063, 47703, 143109, 429327, 1287981, 3545923, 10637769, 31913307, 95739921, 287219763]

約数ペア:

[(1, 287219763), (3, 95739921), (9, 31913307), (27, 10637769), (81, 3545923), (223, 1287981), (669, 429327), (2007, 143109), (6021, 47703), (15901, 18063)]