21092778

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1361}}^1$

素因数の和:1420

約数の個数: 64

約数和(自身を含む): 54915840

約数和(自身を除く): 33823062

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 41, 42, 54, 63, 82, 123, 126, 189, 246, 287, 369, 378, 574, 738, 861, 1107, 1361, 1722, 2214, 2583, 2722, 4083, 5166, 7749, 8166, 9527, 12249, 15498, 19054, 24498, 28581, 36747, 55801, 57162, 73494, 85743, 111602, 167403, 171486, 257229, 334806, 390607, 502209, 514458, 781214, 1004418, 1171821, 1506627, 2343642, 3013254, 3515463, 7030926, 10546389, 21092778]

約数ペア:

[(1, 21092778), (2, 10546389), (3, 7030926), (6, 3515463), (7, 3013254), (9, 2343642), (14, 1506627), (18, 1171821), (21, 1004418), (27, 781214), (41, 514458), (42, 502209), (54, 390607), (63, 334806), (82, 257229), (123, 171486), (126, 167403), (189, 111602), (246, 85743), (287, 73494), (369, 57162), (378, 55801), (574, 36747), (738, 28581), (861, 24498), (1107, 19054), (1361, 15498), (1722, 12249), (2214, 9527), (2583, 8166), (2722, 7749), (4083, 5166)]