20199879

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10343}}^1$

素因数の和:10387

約数の個数: 24

約数和(自身を含む): 34424832

約数和(自身を除く): 14224953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10343, 31029, 72401, 93087, 217203, 320633, 651609, 961899, 2244431, 2885697, 6733293, 20199879]

約数ペア:

[(1, 20199879), (3, 6733293), (7, 2885697), (9, 2244431), (21, 961899), (31, 651609), (63, 320633), (93, 217203), (217, 93087), (279, 72401), (651, 31029), (1953, 10343)]