21059325

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4457}}^1$

素因数の和:4483

約数の個数: 48

約数和(自身を含む): 44223360

約数和(自身を除く): 23164035

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4457, 4725, 13371, 22285, 31199, 40113, 66855, 93597, 111425, 120339, 155995, 200565, 280791, 334275, 467985, 601695, 779975, 842373, 1002825, 1403955, 2339925, 3008475, 4211865, 7019775, 21059325]

約数ペア:

[(1, 21059325), (3, 7019775), (5, 4211865), (7, 3008475), (9, 2339925), (15, 1403955), (21, 1002825), (25, 842373), (27, 779975), (35, 601695), (45, 467985), (63, 334275), (75, 280791), (105, 200565), (135, 155995), (175, 120339), (189, 111425), (225, 93597), (315, 66855), (525, 40113), (675, 31199), (945, 22285), (1575, 13371), (4457, 4725)]