249541521

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{691}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 361323648

約数和(自身を除く): 111782127

約数列:

[1, 3, 17, 51, 73, 97, 219, 291, 691, 1241, 1649, 2073, 3723, 4947, 7081, 11747, 21243, 35241, 50443, 67027, 120377, 151329, 201081, 361131, 857531, 1139459, 2572593, 3418377, 4892971, 14678913, 83180507, 249541521]

約数ペア:

[(1, 249541521), (3, 83180507), (17, 14678913), (51, 4892971), (73, 3418377), (97, 2572593), (219, 1139459), (291, 857531), (691, 361131), (1241, 201081), (1649, 151329), (2073, 120377), (3723, 67027), (4947, 50443), (7081, 35241), (11747, 21243)]