21131208

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{41927}}^1$

素因数の和:41946

約数の個数: 48

約数和(自身を含む): 65407680

約数和(自身を除く): 44276472

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, 41927, 83854, 125781, 167708, 251562, 293489, 335416, 377343, 503124, 586978, 754686, 880467, 1006248, 1173956, 1509372, 1760934, 2347912, 2641401, 3018744, 3521868, 5282802, 7043736, 10565604, 21131208]

約数ペア:

[(1, 21131208), (2, 10565604), (3, 7043736), (4, 5282802), (6, 3521868), (7, 3018744), (8, 2641401), (9, 2347912), (12, 1760934), (14, 1509372), (18, 1173956), (21, 1006248), (24, 880467), (28, 754686), (36, 586978), (42, 503124), (56, 377343), (63, 335416), (72, 293489), (84, 251562), (126, 167708), (168, 125781), (252, 83854), (504, 41927)]