28272741

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1201}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 46156800

約数和(自身を除く): 17884059

約数列:

[1, 3, 7, 19, 21, 57, 59, 133, 177, 399, 413, 1121, 1201, 1239, 3363, 3603, 7847, 8407, 22819, 23541, 25221, 68457, 70859, 159733, 212577, 479199, 496013, 1346321, 1488039, 4038963, 9424247, 28272741]

約数ペア:

[(1, 28272741), (3, 9424247), (7, 4038963), (19, 1488039), (21, 1346321), (57, 496013), (59, 479199), (133, 212577), (177, 159733), (399, 70859), (413, 68457), (1121, 25221), (1201, 23541), (1239, 22819), (3363, 8407), (3603, 7847)]