980091

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 1657344

約数和(自身を除く): 677253

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 331, 423, 987, 993, 2317, 2961, 2979, 6951, 15557, 20853, 46671, 108899, 140013, 326697, 980091]

約数ペア:

[(1, 980091), (3, 326697), (7, 140013), (9, 108899), (21, 46671), (47, 20853), (63, 15557), (141, 6951), (329, 2979), (331, 2961), (423, 2317), (987, 993)]