21000742568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{953}}^1\times {\mathrm{211889}}^1$

素因数の和:212861

約数の個数: 32

約数和(自身を含む): 42450042600

約数和(自身を除く): 21449300032

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 953, 1906, 3812, 7624, 12389, 24778, 49556, 99112, 211889, 423778, 847556, 1695112, 2754557, 5509114, 11018228, 22036456, 201930217, 403860434, 807720868, 1615441736, 2625092821, 5250185642, 10500371284, 21000742568]

約数ペア:

[(1, 21000742568), (2, 10500371284), (4, 5250185642), (8, 2625092821), (13, 1615441736), (26, 807720868), (52, 403860434), (104, 201930217), (953, 22036456), (1906, 11018228), (3812, 5509114), (7624, 2754557), (12389, 1695112), (24778, 847556), (49556, 423778), (99112, 211889)]