21925449

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1409}}^1$

素因数の和:1454

約数の個数: 48

約数和(自身を含む): 41059200

約数和(自身を除く): 19133751

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1409, 1729, 2223, 4227, 5187, 9863, 12681, 15561, 18317, 26771, 29589, 54951, 80313, 88767, 128219, 164853, 187397, 240939, 348023, 384657, 562191, 1044069, 1153971, 1686573, 2436161, 3132207, 7308483, 21925449]

約数ペア:

[(1, 21925449), (3, 7308483), (7, 3132207), (9, 2436161), (13, 1686573), (19, 1153971), (21, 1044069), (39, 562191), (57, 384657), (63, 348023), (91, 240939), (117, 187397), (133, 164853), (171, 128219), (247, 88767), (273, 80313), (399, 54951), (741, 29589), (819, 26771), (1197, 18317), (1409, 15561), (1729, 12681), (2223, 9863), (4227, 5187)]