19994994

素因数分解:

$2^1\times 3^2\times {\mathrm{173}}^1\times {\mathrm{6421}}^1$

素因数の和:6602

約数の個数: 24

約数和(自身を含む): 43579692

約数和(自身を除く): 23584698

約数列:

[1, 2, 3, 6, 9, 18, 173, 346, 519, 1038, 1557, 3114, 6421, 12842, 19263, 38526, 57789, 115578, 1110833, 2221666, 3332499, 6664998, 9997497, 19994994]

約数ペア:

[(1, 19994994), (2, 9997497), (3, 6664998), (6, 3332499), (9, 2221666), (18, 1110833), (173, 115578), (346, 57789), (519, 38526), (1038, 19263), (1557, 12842), (3114, 6421)]