20728368

素因数分解:

$2^4\times 3^2\times {\mathrm{143947}}^1$

素因数の和:143961

約数の個数: 30

約数和(自身を含む): 58011044

約数和(自身を除く): 37282676

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 143947, 287894, 431841, 575788, 863682, 1151576, 1295523, 1727364, 2303152, 2591046, 3454728, 5182092, 6909456, 10364184, 20728368]

約数ペア:

[(1, 20728368), (2, 10364184), (3, 6909456), (4, 5182092), (6, 3454728), (8, 2591046), (9, 2303152), (12, 1727364), (16, 1295523), (18, 1151576), (24, 863682), (36, 575788), (48, 431841), (72, 287894), (144, 143947)]