1520403921

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{21739}}^1$

素因数の和:22173

約数の個数: 24

約数和(自身を含む): 2317484000

約数和(自身を除く): 797080079

約数列:

[1, 3, 9, 19, 57, 171, 409, 1227, 3681, 7771, 21739, 23313, 65217, 69939, 195651, 413041, 1239123, 3717369, 8891251, 26673753, 80021259, 168933769, 506801307, 1520403921]

約数ペア:

[(1, 1520403921), (3, 506801307), (9, 168933769), (19, 80021259), (57, 26673753), (171, 8891251), (409, 3717369), (1227, 1239123), (3681, 413041), (7771, 195651), (21739, 69939), (23313, 65217)]