18811912

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5507}}^1$

素因数の和:5581

約数の個数: 32

約数和(自身を含む): 40979520

約数和(自身を除く): 22167608

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 5507, 11014, 22028, 38549, 44056, 77098, 154196, 308392, 335927, 671854, 1343708, 2351489, 2687416, 4702978, 9405956, 18811912]

約数ペア:

[(1, 18811912), (2, 9405956), (4, 4702978), (7, 2687416), (8, 2351489), (14, 1343708), (28, 671854), (56, 335927), (61, 308392), (122, 154196), (244, 77098), (427, 44056), (488, 38549), (854, 22028), (1708, 11014), (3416, 5507)]