20812015215

素因数分解:

$3^2\times 5^1\times {\mathrm{6361}}^1\times {\mathrm{72707}}^1$

素因数の和:79079

約数の個数: 24

約数和(自身を含む): 36080327088

約数和(自身を除く): 15268311873

約数列:

[1, 3, 5, 9, 15, 45, 6361, 19083, 31805, 57249, 72707, 95415, 218121, 286245, 363535, 654363, 1090605, 3271815, 462489227, 1387467681, 2312446135, 4162403043, 6937338405, 20812015215]

約数ペア:

[(1, 20812015215), (3, 6937338405), (5, 4162403043), (9, 2312446135), (15, 1387467681), (45, 462489227), (6361, 3271815), (19083, 1090605), (31805, 654363), (57249, 363535), (72707, 286245), (95415, 218121)]