21199941

素因数分解:

$3^3\times 7^1\times {\mathrm{223}}^1\times {\mathrm{503}}^1$

素因数の和:742

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 14926779

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 223, 503, 669, 1509, 1561, 2007, 3521, 4527, 4683, 6021, 10563, 13581, 14049, 31689, 42147, 95067, 112169, 336507, 785183, 1009521, 2355549, 3028563, 7066647, 21199941]

約数ペア:

[(1, 21199941), (3, 7066647), (7, 3028563), (9, 2355549), (21, 1009521), (27, 785183), (63, 336507), (189, 112169), (223, 95067), (503, 42147), (669, 31689), (1509, 14049), (1561, 13581), (2007, 10563), (3521, 6021), (4527, 4683)]