21147992

素因数分解:

$2^3\times {\mathrm{1163}}^1\times {\mathrm{2273}}^1$

素因数の和:3442

約数の個数: 16

約数和(自身を含む): 39704040

約数和(自身を除く): 18556048

約数列:

[1, 2, 4, 8, 1163, 2273, 2326, 4546, 4652, 9092, 9304, 18184, 2643499, 5286998, 10573996, 21147992]

約数ペア:

[(1, 21147992), (2, 10573996), (4, 5286998), (8, 2643499), (1163, 18184), (2273, 9304), (2326, 9092), (4546, 4652)]