19996218

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{9181}}^1$

素因数の和:9211

約数の個数: 36

約数和(自身を含む): 47627034

約数和(自身を除く): 27630816

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 121, 198, 242, 363, 726, 1089, 2178, 9181, 18362, 27543, 55086, 82629, 100991, 165258, 201982, 302973, 605946, 908919, 1110901, 1817838, 2221802, 3332703, 6665406, 9998109, 19996218]

約数ペア:

[(1, 19996218), (2, 9998109), (3, 6665406), (6, 3332703), (9, 2221802), (11, 1817838), (18, 1110901), (22, 908919), (33, 605946), (66, 302973), (99, 201982), (121, 165258), (198, 100991), (242, 82629), (363, 55086), (726, 27543), (1089, 18362), (2178, 9181)]