21716492

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 45416448

約数和(自身を除く): 23699956

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 127, 197, 217, 254, 394, 434, 508, 788, 868, 889, 1379, 1778, 2758, 3556, 3937, 5516, 6107, 7874, 12214, 15748, 24428, 25019, 27559, 42749, 50038, 55118, 85498, 100076, 110236, 170996, 175133, 350266, 700532, 775589, 1551178, 3102356, 5429123, 10858246, 21716492]

約数ペア:

[(1, 21716492), (2, 10858246), (4, 5429123), (7, 3102356), (14, 1551178), (28, 775589), (31, 700532), (62, 350266), (124, 175133), (127, 170996), (197, 110236), (217, 100076), (254, 85498), (394, 55118), (434, 50038), (508, 42749), (788, 27559), (868, 25019), (889, 24428), (1379, 15748), (1778, 12214), (2758, 7874), (3556, 6107), (3937, 5516)]