21063172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21319}}^1$

素因数の和:21355

約数の個数: 24

約数和(自身を含む): 41787200

約数和(自身を除く): 20724028

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21319, 42638, 85276, 277147, 405061, 554294, 810122, 1108588, 1620244, 5265793, 10531586, 21063172]

約数ペア:

[(1, 21063172), (2, 10531586), (4, 5265793), (13, 1620244), (19, 1108588), (26, 810122), (38, 554294), (52, 405061), (76, 277147), (247, 85276), (494, 42638), (988, 21319)]