21133875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 41094144

約数和(自身を除く): 19960269

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 83, 97, 105, 125, 175, 249, 291, 375, 415, 485, 525, 581, 679, 875, 1245, 1455, 1743, 2037, 2075, 2425, 2625, 2905, 3395, 6225, 7275, 8051, 8715, 10185, 10375, 12125, 14525, 16975, 24153, 31125, 36375, 40255, 43575, 50925, 56357, 72625, 84875, 120765, 169071, 201275, 217875, 254625, 281785, 603825, 845355, 1006375, 1408925, 3019125, 4226775, 7044625, 21133875]

約数ペア:

[(1, 21133875), (3, 7044625), (5, 4226775), (7, 3019125), (15, 1408925), (21, 1006375), (25, 845355), (35, 603825), (75, 281785), (83, 254625), (97, 217875), (105, 201275), (125, 169071), (175, 120765), (249, 84875), (291, 72625), (375, 56357), (415, 50925), (485, 43575), (525, 40255), (581, 36375), (679, 31125), (875, 24153), (1245, 16975), (1455, 14525), (1743, 12125), (2037, 10375), (2075, 10185), (2425, 8715), (2625, 8051), (2905, 7275), (3395, 6225)]