16562889

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 29278080

約数和(自身を除く): 12715191

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 101, 133, 137, 171, 303, 399, 411, 707, 909, 959, 1197, 1233, 1919, 2121, 2603, 2877, 5757, 6363, 7809, 8631, 13433, 13837, 17271, 18221, 23427, 40299, 41511, 54663, 96859, 120897, 124533, 163989, 262903, 290577, 788709, 871731, 1840321, 2366127, 5520963, 16562889]

約数ペア:

[(1, 16562889), (3, 5520963), (7, 2366127), (9, 1840321), (19, 871731), (21, 788709), (57, 290577), (63, 262903), (101, 163989), (133, 124533), (137, 120897), (171, 96859), (303, 54663), (399, 41511), (411, 40299), (707, 23427), (909, 18221), (959, 17271), (1197, 13837), (1233, 13433), (1919, 8631), (2121, 7809), (2603, 6363), (2877, 5757)]