20860281

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{577}}^1$

素因数の和:702

約数の個数: 32

約数和(自身を含む): 33662720

約数和(自身を除く): 12802439

約数列:

[1, 3, 9, 13, 27, 39, 103, 117, 309, 351, 577, 927, 1339, 1731, 2781, 4017, 5193, 7501, 12051, 15579, 22503, 36153, 59431, 67509, 178293, 202527, 534879, 772603, 1604637, 2317809, 6953427, 20860281]

約数ペア:

[(1, 20860281), (3, 6953427), (9, 2317809), (13, 1604637), (27, 772603), (39, 534879), (103, 202527), (117, 178293), (309, 67509), (351, 59431), (577, 36153), (927, 22503), (1339, 15579), (1731, 12051), (2781, 7501), (4017, 5193)]