18723531

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 27878400

約数和(自身を除く): 9154869

約数列:

[1, 3, 19, 29, 47, 57, 87, 141, 241, 551, 723, 893, 1363, 1653, 2679, 4089, 4579, 6989, 11327, 13737, 20967, 25897, 33981, 77691, 132791, 215213, 328483, 398373, 645639, 985449, 6241177, 18723531]

約数ペア:

[(1, 18723531), (3, 6241177), (19, 985449), (29, 645639), (47, 398373), (57, 328483), (87, 215213), (141, 132791), (241, 77691), (551, 33981), (723, 25897), (893, 20967), (1363, 13737), (1653, 11327), (2679, 6989), (4089, 4579)]