201866721

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{80779}}^1$

素因数の和:80813

約数の個数: 24

約数和(自身を含む): 331521120

約数和(自身を除く): 129654399

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 80779, 242337, 565453, 1373243, 1696359, 3958171, 4119729, 9612701, 11874513, 28838103, 67288907, 201866721]

約数ペア:

[(1, 201866721), (3, 67288907), (7, 28838103), (17, 11874513), (21, 9612701), (49, 4119729), (51, 3958171), (119, 1696359), (147, 1373243), (357, 565453), (833, 242337), (2499, 80779)]