989510697

素因数分解:

$3^2\times 7^1\times {\mathrm{907}}^1\times {\mathrm{17317}}^1$

素因数の和:18237

約数の個数: 24

約数和(自身を含む): 1635373376

約数和(自身を除く): 645862679

約数列:

[1, 3, 7, 9, 21, 63, 907, 2721, 6349, 8163, 17317, 19047, 51951, 57141, 121219, 155853, 363657, 1090971, 15706519, 47119557, 109945633, 141358671, 329836899, 989510697]

約数ペア:

[(1, 989510697), (3, 329836899), (7, 141358671), (9, 109945633), (21, 47119557), (63, 15706519), (907, 1090971), (2721, 363657), (6349, 155853), (8163, 121219), (17317, 57141), (19047, 51951)]