21777910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28283}}^1$

素因数の和:28308

約数の個数: 32

約数和(自身を含む): 48874752

約数和(自身を除く): 27096842

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28283, 56566, 141415, 197981, 282830, 311113, 395962, 622226, 989905, 1555565, 1979810, 2177791, 3111130, 4355582, 10888955, 21777910]

約数ペア:

[(1, 21777910), (2, 10888955), (5, 4355582), (7, 3111130), (10, 2177791), (11, 1979810), (14, 1555565), (22, 989905), (35, 622226), (55, 395962), (70, 311113), (77, 282830), (110, 197981), (154, 141415), (385, 56566), (770, 28283)]