21104552

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12157}}^1$

素因数の和:12201

約数の個数: 32

約数和(自身を含む): 46686720

約数和(自身を除く): 25582168

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 12157, 24314, 48628, 85099, 97256, 170198, 340396, 376867, 680792, 753734, 1507468, 2638069, 3014936, 5276138, 10552276, 21104552]

約数ペア:

[(1, 21104552), (2, 10552276), (4, 5276138), (7, 3014936), (8, 2638069), (14, 1507468), (28, 753734), (31, 680792), (56, 376867), (62, 340396), (124, 170198), (217, 97256), (248, 85099), (434, 48628), (868, 24314), (1736, 12157)]