21181983

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{6199}}^1$

素因数の和:6286

約数の個数: 16

約数和(自身を含む): 30355200

約数和(自身を除く): 9173217

約数列:

[1, 3, 17, 51, 67, 201, 1139, 3417, 6199, 18597, 105383, 316149, 415333, 1245999, 7060661, 21181983]

約数ペア:

[(1, 21181983), (3, 7060661), (17, 1245999), (51, 415333), (67, 316149), (201, 105383), (1139, 18597), (3417, 6199)]