21396958

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{4937}}^1$

素因数の和:5147

約数の個数: 16

約数和(自身を含む): 35198064

約数和(自身を除く): 13801106

約数列:

[1, 2, 11, 22, 197, 394, 2167, 4334, 4937, 9874, 54307, 108614, 972589, 1945178, 10698479, 21396958]

約数ペア:

[(1, 21396958), (2, 10698479), (11, 1945178), (22, 972589), (197, 108614), (394, 54307), (2167, 9874), (4334, 4937)]