21977445

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5657}}^1$

素因数の和:5709

約数の個数: 32

約数和(自身を含む): 41280768

約数和(自身を除く): 19303323

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 5657, 16971, 28285, 39599, 84855, 118797, 197995, 209309, 593985, 627927, 1046545, 1465163, 3139635, 4395489, 7325815, 21977445]

約数ペア:

[(1, 21977445), (3, 7325815), (5, 4395489), (7, 3139635), (15, 1465163), (21, 1046545), (35, 627927), (37, 593985), (105, 209309), (111, 197995), (185, 118797), (259, 84855), (555, 39599), (777, 28285), (1295, 16971), (3885, 5657)]