21507234

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1277}}^1$

素因数の和:1690

約数の個数: 32

約数和(自身を含む): 49320576

約数和(自身を除く): 27813342

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 401, 802, 1203, 1277, 2406, 2554, 2807, 3831, 5614, 7662, 8421, 8939, 16842, 17878, 26817, 53634, 512077, 1024154, 1536231, 3072462, 3584539, 7169078, 10753617, 21507234]

約数ペア:

[(1, 21507234), (2, 10753617), (3, 7169078), (6, 3584539), (7, 3072462), (14, 1536231), (21, 1024154), (42, 512077), (401, 53634), (802, 26817), (1203, 17878), (1277, 16842), (2406, 8939), (2554, 8421), (2807, 7662), (3831, 5614)]