21720372

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{78697}}^1$

素因数の和:78727

約数の個数: 24

約数和(自身を含む): 52885056

約数和(自身を除く): 31164684

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 276, 78697, 157394, 236091, 314788, 472182, 944364, 1810031, 3620062, 5430093, 7240124, 10860186, 21720372]

約数ペア:

[(1, 21720372), (2, 10860186), (3, 7240124), (4, 5430093), (6, 3620062), (12, 1810031), (23, 944364), (46, 472182), (69, 314788), (92, 236091), (138, 157394), (276, 78697)]