427706979

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{571}}^1\times {\mathrm{673}}^1$

素因数の和:1307

約数の個数: 32

約数和(自身を含む): 666192384

約数和(自身を除く): 238485405

約数列:

[1, 3, 7, 21, 53, 159, 371, 571, 673, 1113, 1713, 2019, 3997, 4711, 11991, 14133, 30263, 35669, 90789, 107007, 211841, 249683, 384283, 635523, 749049, 1152849, 2689981, 8069943, 20366999, 61100997, 142568993, 427706979]

約数ペア:

[(1, 427706979), (3, 142568993), (7, 61100997), (21, 20366999), (53, 8069943), (159, 2689981), (371, 1152849), (571, 749049), (673, 635523), (1113, 384283), (1713, 249683), (2019, 211841), (3997, 107007), (4711, 90789), (11991, 35669), (14133, 30263)]