21838719

素因数分解:

$3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{9203}}^1$

素因数の和:9326

約数の個数: 16

約数和(自身を含む): 33576192

約数和(自身を除く): 11737473

約数列:

[1, 3, 7, 21, 113, 339, 791, 2373, 9203, 27609, 64421, 193263, 1039939, 3119817, 7279573, 21838719]

約数ペア:

[(1, 21838719), (3, 7279573), (7, 3119817), (21, 1039939), (113, 193263), (339, 64421), (791, 27609), (2373, 9203)]