21156876

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{5023}}^1$

素因数の和:5052

約数の個数: 60

約数和(自身を含む): 59574592

約数和(自身を除く): 38417716

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 324, 351, 468, 702, 1053, 1404, 2106, 4212, 5023, 10046, 15069, 20092, 30138, 45207, 60276, 65299, 90414, 130598, 135621, 180828, 195897, 261196, 271242, 391794, 406863, 542484, 587691, 783588, 813726, 1175382, 1627452, 1763073, 2350764, 3526146, 5289219, 7052292, 10578438, 21156876]

約数ペア:

[(1, 21156876), (2, 10578438), (3, 7052292), (4, 5289219), (6, 3526146), (9, 2350764), (12, 1763073), (13, 1627452), (18, 1175382), (26, 813726), (27, 783588), (36, 587691), (39, 542484), (52, 406863), (54, 391794), (78, 271242), (81, 261196), (108, 195897), (117, 180828), (156, 135621), (162, 130598), (234, 90414), (324, 65299), (351, 60276), (468, 45207), (702, 30138), (1053, 20092), (1404, 15069), (2106, 10046), (4212, 5023)]