21745136

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6263}}^1$

素因数の和:6309

約数の個数: 40

約数和(自身を含む): 49711104

約数和(自身を除く): 27965968

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 6263, 12526, 25052, 43841, 50104, 87682, 100208, 175364, 194153, 350728, 388306, 701456, 776612, 1359071, 1553224, 2718142, 3106448, 5436284, 10872568, 21745136]

約数ペア:

[(1, 21745136), (2, 10872568), (4, 5436284), (7, 3106448), (8, 2718142), (14, 1553224), (16, 1359071), (28, 776612), (31, 701456), (56, 388306), (62, 350728), (112, 194153), (124, 175364), (217, 100208), (248, 87682), (434, 50104), (496, 43841), (868, 25052), (1736, 12526), (3472, 6263)]