20897604

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6379}}^1$

素因数の和:6409

約数の個数: 72

約数和(自身を含む): 65024960

約数和(自身を除く): 44127356

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 6379, 12758, 19137, 25516, 38274, 44653, 57411, 76548, 82927, 89306, 114822, 133959, 165854, 178612, 229644, 248781, 267918, 331708, 401877, 497562, 535836, 580489, 746343, 803754, 995124, 1160978, 1492686, 1607508, 1741467, 2321956, 2985372, 3482934, 5224401, 6965868, 10448802, 20897604]

約数ペア:

[(1, 20897604), (2, 10448802), (3, 6965868), (4, 5224401), (6, 3482934), (7, 2985372), (9, 2321956), (12, 1741467), (13, 1607508), (14, 1492686), (18, 1160978), (21, 995124), (26, 803754), (28, 746343), (36, 580489), (39, 535836), (42, 497562), (52, 401877), (63, 331708), (78, 267918), (84, 248781), (91, 229644), (117, 178612), (126, 165854), (156, 133959), (182, 114822), (234, 89306), (252, 82927), (273, 76548), (364, 57411), (468, 44653), (546, 38274), (819, 25516), (1092, 19137), (1638, 12758), (3276, 6379)]