21198375

素因数分解:

$3^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{571}}^1$

素因数の和:606

約数の個数: 64

約数和(自身を含む): 42831360

約数和(自身を除く): 21632985

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 125, 135, 165, 225, 275, 297, 375, 495, 571, 675, 825, 1125, 1375, 1485, 1713, 2475, 2855, 3375, 4125, 5139, 6281, 7425, 8565, 12375, 14275, 15417, 18843, 25695, 31405, 37125, 42825, 56529, 71375, 77085, 94215, 128475, 157025, 169587, 214125, 282645, 385425, 471075, 642375, 785125, 847935, 1413225, 1927125, 2355375, 4239675, 7066125, 21198375]

約数ペア:

[(1, 21198375), (3, 7066125), (5, 4239675), (9, 2355375), (11, 1927125), (15, 1413225), (25, 847935), (27, 785125), (33, 642375), (45, 471075), (55, 385425), (75, 282645), (99, 214125), (125, 169587), (135, 157025), (165, 128475), (225, 94215), (275, 77085), (297, 71375), (375, 56529), (495, 42825), (571, 37125), (675, 31405), (825, 25695), (1125, 18843), (1375, 15417), (1485, 14275), (1713, 12375), (2475, 8565), (2855, 7425), (3375, 6281), (4125, 5139)]