21042242207

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{743}}^1\times {\mathrm{1459}}^1$

素因数の和:2315

約数の個数: 32

約数和(自身を含む): 25026969600

約数和(自身を除く): 3984727393

約数列:

[1, 7, 47, 59, 329, 413, 743, 1459, 2773, 5201, 10213, 19411, 34921, 43837, 68573, 86081, 244447, 306859, 480011, 602567, 1084037, 2060339, 4045807, 7588259, 14422373, 28320649, 50949739, 63958183, 356648173, 447707281, 3006034601, 21042242207]

約数ペア:

[(1, 21042242207), (7, 3006034601), (47, 447707281), (59, 356648173), (329, 63958183), (413, 50949739), (743, 28320649), (1459, 14422373), (2773, 7588259), (5201, 4045807), (10213, 2060339), (19411, 1084037), (34921, 602567), (43837, 480011), (68573, 306859), (86081, 244447)]