18222981

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 29184000

約数和(自身を除く): 10961019

約数列:

[1, 3, 7, 21, 37, 47, 111, 141, 259, 329, 499, 777, 987, 1497, 1739, 3493, 5217, 10479, 12173, 18463, 23453, 36519, 55389, 70359, 129241, 164171, 387723, 492513, 867761, 2603283, 6074327, 18222981]

約数ペア:

[(1, 18222981), (3, 6074327), (7, 2603283), (21, 867761), (37, 492513), (47, 387723), (111, 164171), (141, 129241), (259, 70359), (329, 55389), (499, 36519), (777, 23453), (987, 18463), (1497, 12173), (1739, 10479), (3493, 5217)]