20725713

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{67}}^2$

素因数の和:168

約数の個数: 36

約数和(自身を含む): 33174960

約数和(自身を除く): 12449247

約数列:

[1, 3, 9, 19, 27, 57, 67, 81, 171, 201, 243, 513, 603, 1273, 1539, 1809, 3819, 4489, 4617, 5427, 11457, 13467, 16281, 34371, 40401, 85291, 103113, 121203, 255873, 309339, 363609, 767619, 1090827, 2302857, 6908571, 20725713]

約数ペア:

[(1, 20725713), (3, 6908571), (9, 2302857), (19, 1090827), (27, 767619), (57, 363609), (67, 309339), (81, 255873), (171, 121203), (201, 103113), (243, 85291), (513, 40401), (603, 34371), (1273, 16281), (1539, 13467), (1809, 11457), (3819, 5427), (4489, 4617)]