20967051

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{7507}}^1$

素因数の和:7543

約数の個数: 24

約数和(自身を含む): 34236480

約数和(自身を除く): 13269429

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 7507, 22521, 52549, 142633, 157647, 367843, 427899, 998431, 1103529, 2995293, 6989017, 20967051]

約数ペア:

[(1, 20967051), (3, 6989017), (7, 2995293), (19, 1103529), (21, 998431), (49, 427899), (57, 367843), (133, 157647), (147, 142633), (399, 52549), (931, 22521), (2793, 7507)]