20072493

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 35817600

約数和(自身を除く): 15745107

約数列:

[1, 3, 7, 9, 19, 21, 41, 57, 63, 123, 133, 171, 287, 369, 399, 409, 779, 861, 1197, 1227, 2337, 2583, 2863, 3681, 5453, 7011, 7771, 8589, 16359, 16769, 23313, 25767, 49077, 50307, 54397, 69939, 117383, 150921, 163191, 318611, 352149, 489573, 955833, 1056447, 2230277, 2867499, 6690831, 20072493]

約数ペア:

[(1, 20072493), (3, 6690831), (7, 2867499), (9, 2230277), (19, 1056447), (21, 955833), (41, 489573), (57, 352149), (63, 318611), (123, 163191), (133, 150921), (171, 117383), (287, 69939), (369, 54397), (399, 50307), (409, 49077), (779, 25767), (861, 23313), (1197, 16769), (1227, 16359), (2337, 8589), (2583, 7771), (2863, 7011), (3681, 5453)]