19391554

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 37691136

約数和(自身を除く): 18299582

約数列:

[1, 2, 7, 13, 14, 26, 31, 49, 62, 91, 98, 182, 217, 403, 434, 491, 637, 806, 982, 1274, 1519, 2821, 3038, 3437, 5642, 6383, 6874, 12766, 15221, 19747, 24059, 30442, 39494, 44681, 48118, 89362, 106547, 197873, 213094, 312767, 395746, 625534, 745829, 1385111, 1491658, 2770222, 9695777, 19391554]

約数ペア:

[(1, 19391554), (2, 9695777), (7, 2770222), (13, 1491658), (14, 1385111), (26, 745829), (31, 625534), (49, 395746), (62, 312767), (91, 213094), (98, 197873), (182, 106547), (217, 89362), (403, 48118), (434, 44681), (491, 39494), (637, 30442), (806, 24059), (982, 19747), (1274, 15221), (1519, 12766), (2821, 6874), (3038, 6383), (3437, 5642)]