19892491827

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{515737}}^1$

素因数の和:515819

約数の個数: 32

約数和(自身を含む): 30498682368

約数和(自身を除く): 10606190541

約数列:

[1, 3, 13, 23, 39, 43, 69, 129, 299, 559, 897, 989, 1677, 2967, 12857, 38571, 515737, 1547211, 6704581, 11861951, 20113743, 22176691, 35585853, 66530073, 154205363, 288296983, 462616089, 510063893, 864890949, 1530191679, 6630830609, 19892491827]

約数ペア:

[(1, 19892491827), (3, 6630830609), (13, 1530191679), (23, 864890949), (39, 510063893), (43, 462616089), (69, 288296983), (129, 154205363), (299, 66530073), (559, 35585853), (897, 22176691), (989, 20113743), (1677, 11861951), (2967, 6704581), (12857, 1547211), (38571, 515737)]