21354918

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6367}}^1$

素因数の和:6428

約数の個数: 32

約数和(自身を含む): 47072256

約数和(自身を除く): 25717338

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 258, 559, 1118, 1677, 3354, 6367, 12734, 19101, 38202, 82771, 165542, 248313, 273781, 496626, 547562, 821343, 1642686, 3559153, 7118306, 10677459, 21354918]

約数ペア:

[(1, 21354918), (2, 10677459), (3, 7118306), (6, 3559153), (13, 1642686), (26, 821343), (39, 547562), (43, 496626), (78, 273781), (86, 248313), (129, 165542), (258, 82771), (559, 38202), (1118, 19101), (1677, 12734), (3354, 6367)]