21378084

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19577}}^1$

素因数の和:19604

約数の個数: 48

約数和(自身を含む): 61396608

約数和(自身を除く): 40018524

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19577, 39154, 58731, 78308, 117462, 137039, 234924, 254501, 274078, 411117, 509002, 548156, 763503, 822234, 1018004, 1527006, 1644468, 1781507, 3054012, 3563014, 5344521, 7126028, 10689042, 21378084]

約数ペア:

[(1, 21378084), (2, 10689042), (3, 7126028), (4, 5344521), (6, 3563014), (7, 3054012), (12, 1781507), (13, 1644468), (14, 1527006), (21, 1018004), (26, 822234), (28, 763503), (39, 548156), (42, 509002), (52, 411117), (78, 274078), (84, 254501), (91, 234924), (156, 137039), (182, 117462), (273, 78308), (364, 58731), (546, 39154), (1092, 19577)]