19989606

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1181}}^1$

素因数の和:1237

約数の個数: 64

約数和(自身を含む): 50835456

約数和(自身を除く): 30845850

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 31, 39, 42, 62, 78, 91, 93, 182, 186, 217, 273, 403, 434, 546, 651, 806, 1181, 1209, 1302, 2362, 2418, 2821, 3543, 5642, 7086, 8267, 8463, 15353, 16534, 16926, 24801, 30706, 36611, 46059, 49602, 73222, 92118, 107471, 109833, 214942, 219666, 256277, 322413, 475943, 512554, 644826, 768831, 951886, 1427829, 1537662, 2855658, 3331601, 6663202, 9994803, 19989606]

約数ペア:

[(1, 19989606), (2, 9994803), (3, 6663202), (6, 3331601), (7, 2855658), (13, 1537662), (14, 1427829), (21, 951886), (26, 768831), (31, 644826), (39, 512554), (42, 475943), (62, 322413), (78, 256277), (91, 219666), (93, 214942), (182, 109833), (186, 107471), (217, 92118), (273, 73222), (403, 49602), (434, 46059), (546, 36611), (651, 30706), (806, 24801), (1181, 16926), (1209, 16534), (1302, 15353), (2362, 8463), (2418, 8267), (2821, 7086), (3543, 5642)]