21492548

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2251}}^1$

素因数の和:2304

約数の個数: 48

約数和(自身を含む): 48427008

約数和(自身を除く): 26934460

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 217, 308, 341, 434, 682, 868, 1364, 2251, 2387, 4502, 4774, 9004, 9548, 15757, 24761, 31514, 49522, 63028, 69781, 99044, 139562, 173327, 279124, 346654, 488467, 693308, 767591, 976934, 1535182, 1953868, 3070364, 5373137, 10746274, 21492548]

約数ペア:

[(1, 21492548), (2, 10746274), (4, 5373137), (7, 3070364), (11, 1953868), (14, 1535182), (22, 976934), (28, 767591), (31, 693308), (44, 488467), (62, 346654), (77, 279124), (124, 173327), (154, 139562), (217, 99044), (308, 69781), (341, 63028), (434, 49522), (682, 31514), (868, 24761), (1364, 15757), (2251, 9548), (2387, 9004), (4502, 4774)]