21032145

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1447}}^1$

素因数の和:1494

約数の個数: 48

約数和(自身を含む): 40659840

約数和(自身を除く): 19627695

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 255, 285, 323, 765, 855, 969, 1447, 1615, 2907, 4341, 4845, 7235, 13023, 14535, 21705, 24599, 27493, 65115, 73797, 82479, 122995, 137465, 221391, 247437, 368985, 412395, 467381, 1106955, 1237185, 1402143, 2336905, 4206429, 7010715, 21032145]

約数ペア:

[(1, 21032145), (3, 7010715), (5, 4206429), (9, 2336905), (15, 1402143), (17, 1237185), (19, 1106955), (45, 467381), (51, 412395), (57, 368985), (85, 247437), (95, 221391), (153, 137465), (171, 122995), (255, 82479), (285, 73797), (323, 65115), (765, 27493), (855, 24599), (969, 21705), (1447, 14535), (1615, 13023), (2907, 7235), (4341, 4845)]