210005019

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{144931}}^1$

素因数の和:144967

約数の個数: 24

約数和(自身を含む): 361750272

約数和(自身を除く): 151745253

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 144931, 434793, 1014517, 1304379, 3043551, 3333413, 9130653, 10000239, 23333891, 30000717, 70001673, 210005019]

約数ペア:

[(1, 210005019), (3, 70001673), (7, 30000717), (9, 23333891), (21, 10000239), (23, 9130653), (63, 3333413), (69, 3043551), (161, 1304379), (207, 1014517), (483, 434793), (1449, 144931)]