28038927

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{10039}}^1$

素因数の和:10075

約数の個数: 24

約数和(自身を含む): 45782400

約数和(自身を除く): 17743473

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 10039, 30117, 70273, 190741, 210819, 491911, 572223, 1335187, 1475733, 4005561, 9346309, 28038927]

約数ペア:

[(1, 28038927), (3, 9346309), (7, 4005561), (19, 1475733), (21, 1335187), (49, 572223), (57, 491911), (133, 210819), (147, 190741), (399, 70273), (931, 30117), (2793, 10039)]