19518990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15131}}^1$

素因数の和:15184

約数の個数: 32

約数和(自身を含む): 47938176

約数和(自身を除く): 28419186

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 15131, 30262, 45393, 75655, 90786, 151310, 226965, 453930, 650633, 1301266, 1951899, 3253165, 3903798, 6506330, 9759495, 19518990]

約数ペア:

[(1, 19518990), (2, 9759495), (3, 6506330), (5, 3903798), (6, 3253165), (10, 1951899), (15, 1301266), (30, 650633), (43, 453930), (86, 226965), (129, 151310), (215, 90786), (258, 75655), (430, 45393), (645, 30262), (1290, 15131)]