21288456

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42239}}^1$

素因数の和:42258

約数の個数: 48

約数和(自身を含む): 65894400

約数和(自身を除く): 44605944

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42239, 84478, 126717, 168956, 253434, 295673, 337912, 380151, 506868, 591346, 760302, 887019, 1013736, 1182692, 1520604, 1774038, 2365384, 2661057, 3041208, 3548076, 5322114, 7096152, 10644228, 21288456]

約数ペア:

[(1, 21288456), (2, 10644228), (3, 7096152), (4, 5322114), (6, 3548076), (7, 3041208), (8, 2661057), (9, 2365384), (12, 1774038), (14, 1520604), (18, 1182692), (21, 1013736), (24, 887019), (28, 760302), (36, 591346), (42, 506868), (56, 380151), (63, 337912), (72, 295673), (84, 253434), (126, 168956), (168, 126717), (252, 84478), (504, 42239)]