21223894

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{1051}}^1$

素因数の和:1515

約数の個数: 16

約数和(自身を含む): 33327360

約数和(自身を除く): 12103466

約数列:

[1, 2, 23, 46, 439, 878, 1051, 2102, 10097, 20194, 24173, 48346, 461389, 922778, 10611947, 21223894]

約数ペア:

[(1, 21223894), (2, 10611947), (23, 922778), (46, 461389), (439, 48346), (878, 24173), (1051, 20194), (2102, 10097)]