18487749

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4057}}^1$

素因数の和:4105

約数の個数: 24

約数和(自身を含む): 29607168

約数和(自身を除く): 11119419

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4057, 4557, 12171, 28399, 85197, 125767, 198793, 377301, 596379, 880369, 2641107, 6162583, 18487749]

約数ペア:

[(1, 18487749), (3, 6162583), (7, 2641107), (21, 880369), (31, 596379), (49, 377301), (93, 198793), (147, 125767), (217, 85197), (651, 28399), (1519, 12171), (4057, 4557)]