21720332

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{3413}}^1$

素因数の和:3497

約数の個数: 24

約数和(自身を含む): 39957456

約数和(自身を除く): 18237124

約数列:

[1, 2, 4, 37, 43, 74, 86, 148, 172, 1591, 3182, 3413, 6364, 6826, 13652, 126281, 146759, 252562, 293518, 505124, 587036, 5430083, 10860166, 21720332]

約数ペア:

[(1, 21720332), (2, 10860166), (4, 5430083), (37, 587036), (43, 505124), (74, 293518), (86, 252562), (148, 146759), (172, 126281), (1591, 13652), (3182, 6826), (3413, 6364)]