18988164

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{3121}}^1$

素因数の和:3157

約数の個数: 54

約数和(自身を含む): 51990666

約数和(自身を除く): 33002502

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 169, 234, 338, 468, 507, 676, 1014, 1521, 2028, 3042, 3121, 6084, 6242, 9363, 12484, 18726, 28089, 37452, 40573, 56178, 81146, 112356, 121719, 162292, 243438, 365157, 486876, 527449, 730314, 1054898, 1460628, 1582347, 2109796, 3164694, 4747041, 6329388, 9494082, 18988164]

約数ペア:

[(1, 18988164), (2, 9494082), (3, 6329388), (4, 4747041), (6, 3164694), (9, 2109796), (12, 1582347), (13, 1460628), (18, 1054898), (26, 730314), (36, 527449), (39, 486876), (52, 365157), (78, 243438), (117, 162292), (156, 121719), (169, 112356), (234, 81146), (338, 56178), (468, 40573), (507, 37452), (676, 28089), (1014, 18726), (1521, 12484), (2028, 9363), (3042, 6242), (3121, 6084)]