28884807

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{409}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 51168000

約数和(自身を除く): 22283193

約数列:

[1, 3, 7, 9, 19, 21, 57, 59, 63, 133, 171, 177, 399, 409, 413, 531, 1121, 1197, 1227, 1239, 2863, 3363, 3681, 3717, 7771, 7847, 8589, 10089, 23313, 23541, 24131, 25767, 54397, 69939, 70623, 72393, 163191, 168917, 217179, 458489, 489573, 506751, 1375467, 1520253, 3209423, 4126401, 9628269, 28884807]

約数ペア:

[(1, 28884807), (3, 9628269), (7, 4126401), (9, 3209423), (19, 1520253), (21, 1375467), (57, 506751), (59, 489573), (63, 458489), (133, 217179), (171, 168917), (177, 163191), (399, 72393), (409, 70623), (413, 69939), (531, 54397), (1121, 25767), (1197, 24131), (1227, 23541), (1239, 23313), (2863, 10089), (3363, 8589), (3681, 7847), (3717, 7771)]