21337672

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{887}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 41771520

約数和(自身を除く): 20433848

約数列:

[1, 2, 4, 8, 31, 62, 97, 124, 194, 248, 388, 776, 887, 1774, 3007, 3548, 6014, 7096, 12028, 24056, 27497, 54994, 86039, 109988, 172078, 219976, 344156, 688312, 2667209, 5334418, 10668836, 21337672]

約数ペア:

[(1, 21337672), (2, 10668836), (4, 5334418), (8, 2667209), (31, 688312), (62, 344156), (97, 219976), (124, 172078), (194, 109988), (248, 86039), (388, 54994), (776, 27497), (887, 24056), (1774, 12028), (3007, 7096), (3548, 6014)]