8821215

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{887}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 17454528

約数和(自身を除く): 8633313

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 887, 1105, 1989, 2661, 3315, 4435, 7983, 9945, 11531, 13305, 15079, 34593, 39915, 45237, 57655, 75395, 103779, 135711, 172965, 196027, 226185, 518895, 588081, 678555, 980135, 1764243, 2940405, 8821215]

約数ペア:

[(1, 8821215), (3, 2940405), (5, 1764243), (9, 980135), (13, 678555), (15, 588081), (17, 518895), (39, 226185), (45, 196027), (51, 172965), (65, 135711), (85, 103779), (117, 75395), (153, 57655), (195, 45237), (221, 39915), (255, 34593), (585, 15079), (663, 13305), (765, 11531), (887, 9945), (1105, 7983), (1989, 4435), (2661, 3315)]