19978134

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{719}}^1$

素因数の和:1156

約数の個数: 32

約数和(自身を含む): 43752960

約数和(自身を除く): 23774826

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 421, 719, 842, 1263, 1438, 2157, 2526, 4314, 4631, 7909, 9262, 13893, 15818, 23727, 27786, 47454, 302699, 605398, 908097, 1816194, 3329689, 6659378, 9989067, 19978134]

約数ペア:

[(1, 19978134), (2, 9989067), (3, 6659378), (6, 3329689), (11, 1816194), (22, 908097), (33, 605398), (66, 302699), (421, 47454), (719, 27786), (842, 23727), (1263, 15818), (1438, 13893), (2157, 9262), (2526, 7909), (4314, 4631)]