18755163

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 32550336

約数和(自身を除く): 13795173

約数列:

[1, 3, 7, 9, 21, 41, 53, 63, 123, 137, 159, 287, 369, 371, 411, 477, 861, 959, 1113, 1233, 2173, 2583, 2877, 3339, 5617, 6519, 7261, 8631, 15211, 16851, 19557, 21783, 39319, 45633, 50553, 50827, 65349, 117957, 136899, 152481, 297701, 353871, 457443, 893103, 2083907, 2679309, 6251721, 18755163]

約数ペア:

[(1, 18755163), (3, 6251721), (7, 2679309), (9, 2083907), (21, 893103), (41, 457443), (53, 353871), (63, 297701), (123, 152481), (137, 136899), (159, 117957), (287, 65349), (369, 50827), (371, 50553), (411, 45633), (477, 39319), (861, 21783), (959, 19557), (1113, 16851), (1233, 15211), (2173, 8631), (2583, 7261), (2877, 6519), (3339, 5617)]