207299709

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{823}}^1$

素因数の和:1342

約数の個数: 32

約数和(自身を含む): 324326400

約数和(自身を除く): 117026691

約数列:

[1, 3, 9, 19, 27, 57, 171, 491, 513, 823, 1473, 2469, 4419, 7407, 9329, 13257, 15637, 22221, 27987, 46911, 83961, 140733, 251883, 404093, 422199, 1212279, 3636837, 7677767, 10910511, 23033301, 69099903, 207299709]

約数ペア:

[(1, 207299709), (3, 69099903), (9, 23033301), (19, 10910511), (27, 7677767), (57, 3636837), (171, 1212279), (491, 422199), (513, 404093), (823, 251883), (1473, 140733), (2469, 83961), (4419, 46911), (7407, 27987), (9329, 22221), (13257, 15637)]