21223773

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{509}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 31744440

約数和(自身を除く): 10520667

約数列:

[1, 3, 9, 41, 113, 123, 339, 369, 509, 1017, 1527, 4581, 4633, 13899, 20869, 41697, 57517, 62607, 172551, 187821, 517653, 2358197, 7074591, 21223773]

約数ペア:

[(1, 21223773), (3, 7074591), (9, 2358197), (41, 517653), (113, 187821), (123, 172551), (339, 62607), (369, 57517), (509, 41697), (1017, 20869), (1527, 13899), (4581, 4633)]