66918836

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{20477}}^1$

素因数の和:20543

約数の個数: 24

約数和(自身を含む): 126144480

約数和(自身を除く): 59225644

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 20477, 40954, 81908, 389063, 778126, 880511, 1556252, 1761022, 3522044, 16729709, 33459418, 66918836]

約数ペア:

[(1, 66918836), (2, 33459418), (4, 16729709), (19, 3522044), (38, 1761022), (43, 1556252), (76, 880511), (86, 778126), (172, 389063), (817, 81908), (1634, 40954), (3268, 20477)]