20840827

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:355

約数の個数: 24

約数和(自身を含む): 26002944

約数和(自身を除く): 5162117

約数列:

[1, 7, 17, 49, 119, 127, 197, 833, 889, 1379, 2159, 3349, 6223, 9653, 15113, 23443, 25019, 105791, 164101, 175133, 425323, 1225931, 2977261, 20840827]

約数ペア:

[(1, 20840827), (7, 2977261), (17, 1225931), (49, 425323), (119, 175133), (127, 164101), (197, 105791), (833, 25019), (889, 23443), (1379, 15113), (2159, 9653), (3349, 6223)]