21961275

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{709}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 42259200

約数和(自身を除く): 20297925

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 59, 75, 105, 175, 177, 295, 413, 525, 709, 885, 1239, 1475, 2065, 2127, 3545, 4425, 4963, 6195, 10325, 10635, 14889, 17725, 24815, 30975, 41831, 53175, 74445, 124075, 125493, 209155, 292817, 372225, 627465, 878451, 1045775, 1464085, 3137325, 4392255, 7320425, 21961275]

約数ペア:

[(1, 21961275), (3, 7320425), (5, 4392255), (7, 3137325), (15, 1464085), (21, 1045775), (25, 878451), (35, 627465), (59, 372225), (75, 292817), (105, 209155), (175, 125493), (177, 124075), (295, 74445), (413, 53175), (525, 41831), (709, 30975), (885, 24815), (1239, 17725), (1475, 14889), (2065, 10635), (2127, 10325), (3545, 6195), (4425, 4963)]