21483320

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{4229}}^1$

素因数の和:4367

約数の個数: 32

約数和(自身を含む): 48729600

約数和(自身を除く): 27246280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 4229, 5080, 8458, 16916, 21145, 33832, 42290, 84580, 169160, 537083, 1074166, 2148332, 2685415, 4296664, 5370830, 10741660, 21483320]

約数ペア:

[(1, 21483320), (2, 10741660), (4, 5370830), (5, 4296664), (8, 2685415), (10, 2148332), (20, 1074166), (40, 537083), (127, 169160), (254, 84580), (508, 42290), (635, 33832), (1016, 21145), (1270, 16916), (2540, 8458), (4229, 5080)]