21288568

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12263}}^1$

素因数の和:12307

約数の個数: 32

約数和(自身を含む): 47093760

約数和(自身を除く): 25805192

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 12263, 24526, 49052, 85841, 98104, 171682, 343364, 380153, 686728, 760306, 1520612, 2661071, 3041224, 5322142, 10644284, 21288568]

約数ペア:

[(1, 21288568), (2, 10644284), (4, 5322142), (7, 3041224), (8, 2661071), (14, 1520612), (28, 760306), (31, 686728), (56, 380153), (62, 343364), (124, 171682), (217, 98104), (248, 85841), (434, 49052), (868, 24526), (1736, 12263)]