21825433

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:254

約数の個数: 32

約数和(自身を含む): 28512000

約数和(自身を除く): 6686567

約数列:

[1, 7, 17, 19, 49, 119, 133, 197, 323, 343, 833, 931, 1379, 2261, 3349, 3743, 5831, 6517, 9653, 15827, 23443, 26201, 63631, 67571, 110789, 164101, 183407, 445417, 1148707, 1283849, 3117919, 21825433]

約数ペア:

[(1, 21825433), (7, 3117919), (17, 1283849), (19, 1148707), (49, 445417), (119, 183407), (133, 164101), (197, 110789), (323, 67571), (343, 63631), (833, 26201), (931, 23443), (1379, 15827), (2261, 9653), (3349, 6517), (3743, 5831)]