21811202

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{491}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 39674880

約数和(自身を除く): 17863678

約数列:

[1, 2, 7, 14, 19, 38, 133, 167, 266, 334, 491, 982, 1169, 2338, 3173, 3437, 6346, 6874, 9329, 18658, 22211, 44422, 65303, 81997, 130606, 163994, 573979, 1147958, 1557943, 3115886, 10905601, 21811202]

約数ペア:

[(1, 21811202), (2, 10905601), (7, 3115886), (14, 1557943), (19, 1147958), (38, 573979), (133, 163994), (167, 130606), (266, 81997), (334, 65303), (491, 44422), (982, 22211), (1169, 18658), (2338, 9329), (3173, 6874), (3437, 6346)]