21201858

素因数分解:

$2^1\times 3^3\times {\mathrm{199}}^1\times {\mathrm{1973}}^1$

素因数の和:2183

約数の個数: 32

約数和(自身を含む): 47376000

約数和(自身を除く): 26174142

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 199, 398, 597, 1194, 1791, 1973, 3582, 3946, 5373, 5919, 10746, 11838, 17757, 35514, 53271, 106542, 392627, 785254, 1177881, 2355762, 3533643, 7067286, 10600929, 21201858]

約数ペア:

[(1, 21201858), (2, 10600929), (3, 7067286), (6, 3533643), (9, 2355762), (18, 1177881), (27, 785254), (54, 392627), (199, 106542), (398, 53271), (597, 35514), (1194, 17757), (1791, 11838), (1973, 10746), (3582, 5919), (3946, 5373)]