28371921

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{1217}}^1$

素因数の和:1648

約数の個数: 16

約数和(自身を含む): 39950400

約数和(自身を除く): 11578479

約数列:

[1, 3, 19, 57, 409, 1217, 1227, 3651, 7771, 23123, 23313, 69369, 497753, 1493259, 9457307, 28371921]

約数ペア:

[(1, 28371921), (3, 9457307), (19, 1493259), (57, 497753), (409, 69369), (1217, 23313), (1227, 23123), (3651, 7771)]