21375333

素因数分解:

$3^4\times 7^1\times {\mathrm{37699}}^1$

素因数の和:37718

約数の個数: 20

約数和(自身を含む): 36493600

約数和(自身を除く): 15118267

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37699, 113097, 263893, 339291, 791679, 1017873, 2375037, 3053619, 7125111, 21375333]

約数ペア:

[(1, 21375333), (3, 7125111), (7, 3053619), (9, 2375037), (21, 1017873), (27, 791679), (63, 339291), (81, 263893), (189, 113097), (567, 37699)]