2947.000000

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:51

約数の個数: 48

約数和(自身を含む): 486720

約数和(自身を除く): 251595

約数列:

[1, 3, 5, 9, 11, 15, 19, 25, 33, 45, 55, 57, 75, 95, 99, 125, 165, 171, 209, 225, 275, 285, 375, 475, 495, 627, 825, 855, 1045, 1125, 1375, 1425, 1881, 2375, 2475, 3135, 4125, 4275, 5225, 7125, 9405, 12375, 15675, 21375, 26125, 47025, 78375, 235125]

約数ペア:

[(1, 235125), (3, 78375), (5, 47025), (9, 26125), (11, 21375), (15, 15675), (19, 12375), (25, 9405), (33, 7125), (45, 5225), (55, 4275), (57, 4125), (75, 3135), (95, 2475), (99, 2375), (125, 1881), (165, 1425), (171, 1375), (209, 1125), (225, 1045), (275, 855), (285, 825), (375, 627), (475, 495)]