21503522015

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{613}}^1\times {\mathrm{1321}}^1$

素因数の和:2099

約数の個数: 32

約数和(自身を含む): 26649997056

約数和(自身を除く): 5146475041

約数列:

[1, 5, 47, 113, 235, 565, 613, 1321, 3065, 5311, 6605, 26555, 28811, 62087, 69269, 144055, 149273, 310435, 346345, 746365, 809773, 3255643, 4048865, 7015831, 16278215, 35079155, 38059331, 91504349, 190296655, 457521745, 4300704403, 21503522015]

約数ペア:

[(1, 21503522015), (5, 4300704403), (47, 457521745), (113, 190296655), (235, 91504349), (565, 38059331), (613, 35079155), (1321, 16278215), (3065, 7015831), (5311, 4048865), (6605, 3255643), (26555, 809773), (28811, 746365), (62087, 346345), (69269, 310435), (144055, 149273)]