18893259

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 34444800

約数和(自身を除く): 15551541

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 137, 199, 231, 411, 597, 693, 959, 1233, 1393, 1507, 1791, 2189, 2877, 4179, 4521, 6567, 8631, 10549, 12537, 13563, 15323, 19701, 27263, 31647, 45969, 81789, 94941, 137907, 190841, 245367, 299893, 572523, 899679, 1717569, 2099251, 2699037, 6297753, 18893259]

約数ペア:

[(1, 18893259), (3, 6297753), (7, 2699037), (9, 2099251), (11, 1717569), (21, 899679), (33, 572523), (63, 299893), (77, 245367), (99, 190841), (137, 137907), (199, 94941), (231, 81789), (411, 45969), (597, 31647), (693, 27263), (959, 19701), (1233, 15323), (1393, 13563), (1507, 12537), (1791, 10549), (2189, 8631), (2877, 6567), (4179, 4521)]