212989821

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{971}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 343761408

約数和(自身を除く): 130771587

約数列:

[1, 3, 11, 17, 23, 33, 51, 69, 187, 253, 289, 391, 561, 759, 867, 971, 1173, 2913, 3179, 4301, 6647, 9537, 10681, 12903, 16507, 19941, 22333, 32043, 49521, 66999, 73117, 181577, 219351, 245663, 280619, 379661, 544731, 736989, 841857, 1138983, 3086809, 4176271, 6454237, 9260427, 12528813, 19362711, 70996607, 212989821]

約数ペア:

[(1, 212989821), (3, 70996607), (11, 19362711), (17, 12528813), (23, 9260427), (33, 6454237), (51, 4176271), (69, 3086809), (187, 1138983), (253, 841857), (289, 736989), (391, 544731), (561, 379661), (759, 280619), (867, 245663), (971, 219351), (1173, 181577), (2913, 73117), (3179, 66999), (4301, 49521), (6647, 32043), (9537, 22333), (10681, 19941), (12903, 16507)]