20073291

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{7187}}^1$

素因数の和:7223

約数の個数: 24

約数和(自身を含む): 32777280

約数和(自身を除く): 12703989

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 7187, 21561, 50309, 136553, 150927, 352163, 409659, 955871, 1056489, 2867613, 6691097, 20073291]

約数ペア:

[(1, 20073291), (3, 6691097), (7, 2867613), (19, 1056489), (21, 955871), (49, 409659), (57, 352163), (133, 150927), (147, 136553), (399, 50309), (931, 21561), (2793, 7187)]