19212710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{449}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 37908000

約数和(自身を除く): 18695290

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 389, 449, 778, 898, 1945, 2245, 3890, 4279, 4490, 4939, 8558, 9878, 21395, 24695, 42790, 49390, 174661, 349322, 873305, 1746610, 1921271, 3842542, 9606355, 19212710]

約数ペア:

[(1, 19212710), (2, 9606355), (5, 3842542), (10, 1921271), (11, 1746610), (22, 873305), (55, 349322), (110, 174661), (389, 49390), (449, 42790), (778, 24695), (898, 21395), (1945, 9878), (2245, 8558), (3890, 4939), (4279, 4490)]