20178518983

素因数分解:

$7^1\times {\mathrm{331}}^1\times {\mathrm{971}}^1\times {\mathrm{8969}}^1$

素因数の和:10278

約数の個数: 16

約数和(自身を含む): 23157239040

約数和(自身を除く): 2978720057

約数列:

[1, 7, 331, 971, 2317, 6797, 8969, 62783, 321401, 2249807, 2968739, 8708899, 20781173, 60962293, 2882645569, 20178518983]

約数ペア:

[(1, 20178518983), (7, 2882645569), (331, 60962293), (971, 20781173), (2317, 8708899), (6797, 2968739), (8969, 2249807), (62783, 321401)]