21998204

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{3203}}^1$

素因数の和:3325

約数の個数: 24

約数和(自身を含む): 41177808

約数和(自身を除く): 19179604

約数列:

[1, 2, 4, 17, 34, 68, 101, 202, 404, 1717, 3203, 3434, 6406, 6868, 12812, 54451, 108902, 217804, 323503, 647006, 1294012, 5499551, 10999102, 21998204]

約数ペア:

[(1, 21998204), (2, 10999102), (4, 5499551), (17, 1294012), (34, 647006), (68, 323503), (101, 217804), (202, 108902), (404, 54451), (1717, 12812), (3203, 6868), (3434, 6406)]