20725428

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{90901}}^1$

素因数の和:90927

約数の個数: 24

約数和(自身を含む): 50905120

約数和(自身を除く): 30179692

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 90901, 181802, 272703, 363604, 545406, 1090812, 1727119, 3454238, 5181357, 6908476, 10362714, 20725428]

約数ペア:

[(1, 20725428), (2, 10362714), (3, 6908476), (4, 5181357), (6, 3454238), (12, 1727119), (19, 1090812), (38, 545406), (57, 363604), (76, 272703), (114, 181802), (228, 90901)]