21922920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:456

約数の個数: 128

約数和(自身を含む): 74649600

約数和(自身を除く): 52726680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 53, 54, 60, 72, 90, 106, 108, 120, 135, 159, 180, 212, 216, 265, 270, 318, 360, 383, 424, 477, 530, 540, 636, 766, 795, 954, 1060, 1080, 1149, 1272, 1431, 1532, 1590, 1908, 1915, 2120, 2298, 2385, 2862, 3064, 3180, 3447, 3816, 3830, 4596, 4770, 5724, 5745, 6360, 6894, 7155, 7660, 9192, 9540, 10341, 11448, 11490, 13788, 14310, 15320, 17235, 19080, 20299, 20682, 22980, 27576, 28620, 34470, 40598, 41364, 45960, 51705, 57240, 60897, 68940, 81196, 82728, 101495, 103410, 121794, 137880, 162392, 182691, 202990, 206820, 243588, 304485, 365382, 405980, 413640, 487176, 548073, 608970, 730764, 811960, 913455, 1096146, 1217940, 1461528, 1826910, 2192292, 2435880, 2740365, 3653820, 4384584, 5480730, 7307640, 10961460, 21922920]

約数ペア:

[(1, 21922920), (2, 10961460), (3, 7307640), (4, 5480730), (5, 4384584), (6, 3653820), (8, 2740365), (9, 2435880), (10, 2192292), (12, 1826910), (15, 1461528), (18, 1217940), (20, 1096146), (24, 913455), (27, 811960), (30, 730764), (36, 608970), (40, 548073), (45, 487176), (53, 413640), (54, 405980), (60, 365382), (72, 304485), (90, 243588), (106, 206820), (108, 202990), (120, 182691), (135, 162392), (159, 137880), (180, 121794), (212, 103410), (216, 101495), (265, 82728), (270, 81196), (318, 68940), (360, 60897), (383, 57240), (424, 51705), (477, 45960), (530, 41364), (540, 40598), (636, 34470), (766, 28620), (795, 27576), (954, 22980), (1060, 20682), (1080, 20299), (1149, 19080), (1272, 17235), (1431, 15320), (1532, 14310), (1590, 13788), (1908, 11490), (1915, 11448), (2120, 10341), (2298, 9540), (2385, 9192), (2862, 7660), (3064, 7155), (3180, 6894), (3447, 6360), (3816, 5745), (3830, 5724), (4596, 4770)]