21099015

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 22446585

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 83, 105, 135, 189, 249, 269, 315, 415, 581, 747, 807, 945, 1245, 1345, 1743, 1883, 2241, 2421, 2905, 3735, 4035, 5229, 5649, 7263, 8715, 9415, 11205, 12105, 15687, 16947, 22327, 26145, 28245, 36315, 50841, 66981, 78435, 84735, 111635, 156289, 200943, 254205, 334905, 468867, 602829, 781445, 1004715, 1406601, 2344335, 3014145, 4219803, 7033005, 21099015]

約数ペア:

[(1, 21099015), (3, 7033005), (5, 4219803), (7, 3014145), (9, 2344335), (15, 1406601), (21, 1004715), (27, 781445), (35, 602829), (45, 468867), (63, 334905), (83, 254205), (105, 200943), (135, 156289), (189, 111635), (249, 84735), (269, 78435), (315, 66981), (415, 50841), (581, 36315), (747, 28245), (807, 26145), (945, 22327), (1245, 16947), (1345, 15687), (1743, 12105), (1883, 11205), (2241, 9415), (2421, 8715), (2905, 7263), (3735, 5649), (4035, 5229)]