18641679

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2459}}^1$

素因数の和:2507

約数の個数: 24

約数和(自身を含む): 29992320

約数和(自身を除く): 11350641

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2459, 2527, 7377, 7581, 17213, 46721, 51639, 140163, 327047, 887699, 981141, 2663097, 6213893, 18641679]

約数ペア:

[(1, 18641679), (3, 6213893), (7, 2663097), (19, 981141), (21, 887699), (57, 327047), (133, 140163), (361, 51639), (399, 46721), (1083, 17213), (2459, 7581), (2527, 7377)]