21779135

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^2$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 30661728

約数和(自身を除く): 8882593

約数列:

[1, 5, 7, 35, 61, 101, 305, 427, 505, 707, 2135, 3535, 6161, 10201, 30805, 43127, 51005, 71407, 215635, 357035, 622261, 3111305, 4355827, 21779135]

約数ペア:

[(1, 21779135), (5, 4355827), (7, 3111305), (35, 622261), (61, 357035), (101, 215635), (305, 71407), (427, 51005), (505, 43127), (707, 30805), (2135, 10201), (3535, 6161)]