20399958

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{337}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 48672000

約数和(自身を除く): 28272042

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 59, 114, 118, 171, 177, 337, 342, 354, 513, 531, 674, 1011, 1026, 1062, 1121, 1593, 2022, 2242, 3033, 3186, 3363, 6066, 6403, 6726, 9099, 10089, 12806, 18198, 19209, 19883, 20178, 30267, 38418, 39766, 57627, 59649, 60534, 115254, 119298, 172881, 178947, 345762, 357894, 377777, 536841, 755554, 1073682, 1133331, 2266662, 3399993, 6799986, 10199979, 20399958]

約数ペア:

[(1, 20399958), (2, 10199979), (3, 6799986), (6, 3399993), (9, 2266662), (18, 1133331), (19, 1073682), (27, 755554), (38, 536841), (54, 377777), (57, 357894), (59, 345762), (114, 178947), (118, 172881), (171, 119298), (177, 115254), (337, 60534), (342, 59649), (354, 57627), (513, 39766), (531, 38418), (674, 30267), (1011, 20178), (1026, 19883), (1062, 19209), (1121, 18198), (1593, 12806), (2022, 10089), (2242, 9099), (3033, 6726), (3186, 6403), (3363, 6066)]