19669268

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 35065800

約数和(自身を除く): 15396532

約数列:

[1, 2, 4, 109, 197, 218, 229, 394, 436, 458, 788, 916, 21473, 24961, 42946, 45113, 49922, 85892, 90226, 99844, 180452, 4917317, 9834634, 19669268]

約数ペア:

[(1, 19669268), (2, 9834634), (4, 4917317), (109, 180452), (197, 99844), (218, 90226), (229, 85892), (394, 49922), (436, 45113), (458, 42946), (788, 24961), (916, 21473)]