129779979

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 209599488

約数和(自身を除く): 79819509

約数列:

[1, 3, 7, 21, 37, 49, 107, 111, 147, 223, 259, 321, 669, 749, 777, 1561, 1813, 2247, 3959, 4683, 5243, 5439, 8251, 10927, 11877, 15729, 23861, 24753, 27713, 32781, 57757, 71583, 83139, 167027, 173271, 193991, 404299, 501081, 581973, 882857, 1169189, 1212897, 2648571, 3507567, 6179999, 18539997, 43259993, 129779979]

約数ペア:

[(1, 129779979), (3, 43259993), (7, 18539997), (21, 6179999), (37, 3507567), (49, 2648571), (107, 1212897), (111, 1169189), (147, 882857), (223, 581973), (259, 501081), (321, 404299), (669, 193991), (749, 173271), (777, 167027), (1561, 83139), (1813, 71583), (2247, 57757), (3959, 32781), (4683, 27713), (5243, 24753), (5439, 23861), (8251, 15729), (10927, 11877)]