21388632

素因数分解:

$2^3\times 3^1\times {\mathrm{131}}^1\times {\mathrm{6803}}^1$

素因数の和:6943

約数の個数: 32

約数和(自身を含む): 53887680

約数和(自身を除く): 32499048

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 131, 262, 393, 524, 786, 1048, 1572, 3144, 6803, 13606, 20409, 27212, 40818, 54424, 81636, 163272, 891193, 1782386, 2673579, 3564772, 5347158, 7129544, 10694316, 21388632]

約数ペア:

[(1, 21388632), (2, 10694316), (3, 7129544), (4, 5347158), (6, 3564772), (8, 2673579), (12, 1782386), (24, 891193), (131, 163272), (262, 81636), (393, 54424), (524, 40818), (786, 27212), (1048, 20409), (1572, 13606), (3144, 6803)]