20456478

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{907}}^1$

素因数の和:1101

約数の個数: 48

約数和(自身を含む): 50993280

約数和(自身を除く): 30536802

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 179, 358, 537, 907, 1074, 1253, 1611, 1814, 2506, 2721, 3222, 3759, 5442, 6349, 7518, 8163, 11277, 12698, 16326, 19047, 22554, 38094, 57141, 114282, 162353, 324706, 487059, 974118, 1136471, 1461177, 2272942, 2922354, 3409413, 6818826, 10228239, 20456478]

約数ペア:

[(1, 20456478), (2, 10228239), (3, 6818826), (6, 3409413), (7, 2922354), (9, 2272942), (14, 1461177), (18, 1136471), (21, 974118), (42, 487059), (63, 324706), (126, 162353), (179, 114282), (358, 57141), (537, 38094), (907, 22554), (1074, 19047), (1253, 16326), (1611, 12698), (1814, 11277), (2506, 8163), (2721, 7518), (3222, 6349), (3759, 5442)]