28189305

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21601}}^1$

素因数の和:21641

約数の個数: 24

約数和(自身を含む): 50548680

約数和(自身を除く): 22359375

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 21601, 64803, 108005, 194409, 324015, 626429, 972045, 1879287, 3132145, 5637861, 9396435, 28189305]

約数ペア:

[(1, 28189305), (3, 9396435), (5, 5637861), (9, 3132145), (15, 1879287), (29, 972045), (45, 626429), (87, 324015), (145, 194409), (261, 108005), (435, 64803), (1305, 21601)]