21272028

素因数分解:

$2^2\times 3^1\times {\mathrm{107}}^1\times {\mathrm{16567}}^1$

素因数の和:16681

約数の個数: 24

約数和(自身を含む): 50101632

約数和(自身を除く): 28829604

約数列:

[1, 2, 3, 4, 6, 12, 107, 214, 321, 428, 642, 1284, 16567, 33134, 49701, 66268, 99402, 198804, 1772669, 3545338, 5318007, 7090676, 10636014, 21272028]

約数ペア:

[(1, 21272028), (2, 10636014), (3, 7090676), (4, 5318007), (6, 3545338), (12, 1772669), (107, 198804), (214, 99402), (321, 66268), (428, 49701), (642, 33134), (1284, 16567)]