20413197

素因数分解:

$3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1453}}^1$

素因数の和:1689

約数の個数: 24

約数和(自身を含む): 33872384

約数和(自身を除く): 13459187

約数列:

[1, 3, 7, 9, 21, 63, 223, 669, 1453, 1561, 2007, 4359, 4683, 10171, 13077, 14049, 30513, 91539, 324019, 972057, 2268133, 2916171, 6804399, 20413197]

約数ペア:

[(1, 20413197), (3, 6804399), (7, 2916171), (9, 2268133), (21, 972057), (63, 324019), (223, 91539), (669, 30513), (1453, 14049), (1561, 13077), (2007, 10171), (4359, 4683)]