20518938

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{9421}}^1$

素因数の和:9451

約数の個数: 36

約数和(自身を含む): 48871914

約数和(自身を除く): 28352976

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 121, 198, 242, 363, 726, 1089, 2178, 9421, 18842, 28263, 56526, 84789, 103631, 169578, 207262, 310893, 621786, 932679, 1139941, 1865358, 2279882, 3419823, 6839646, 10259469, 20518938]

約数ペア:

[(1, 20518938), (2, 10259469), (3, 6839646), (6, 3419823), (9, 2279882), (11, 1865358), (18, 1139941), (22, 932679), (33, 621786), (66, 310893), (99, 207262), (121, 169578), (198, 103631), (242, 84789), (363, 56526), (726, 28263), (1089, 18842), (2178, 9421)]