21003208629

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1336337}}^1$

素因数の和:1336397

約数の個数: 24

約数和(自身を含む): 31302381312

約数和(自身を除く): 10299172683

約数列:

[1, 3, 13, 31, 39, 93, 169, 403, 507, 1209, 5239, 15717, 1336337, 4009011, 17372381, 41426447, 52117143, 124279341, 225840953, 538543811, 677522859, 1615631433, 7001069543, 21003208629]

約数ペア:

[(1, 21003208629), (3, 7001069543), (13, 1615631433), (31, 677522859), (39, 538543811), (93, 225840953), (169, 124279341), (403, 52117143), (507, 41426447), (1209, 17372381), (5239, 4009011), (15717, 1336337)]