20894433

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{7481}}^1$

素因数の和:7517

約数の個数: 24

約数和(自身を含む): 34117920

約数和(自身を除く): 13223487

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 7481, 22443, 52367, 142139, 157101, 366569, 426417, 994973, 1099707, 2984919, 6964811, 20894433]

約数ペア:

[(1, 20894433), (3, 6964811), (7, 2984919), (19, 1099707), (21, 994973), (49, 426417), (57, 366569), (133, 157101), (147, 142139), (399, 52367), (931, 22443), (2793, 7481)]