21936789

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12007}}^1$

素因数の和:12049

約数の個数: 24

約数和(自身を含む): 37464960

約数和(自身を除く): 15528171

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 12007, 36021, 84049, 108063, 252147, 348203, 756441, 1044609, 2437421, 3133827, 7312263, 21936789]

約数ペア:

[(1, 21936789), (3, 7312263), (7, 3133827), (9, 2437421), (21, 1044609), (29, 756441), (63, 348203), (87, 252147), (203, 108063), (261, 84049), (609, 36021), (1827, 12007)]