21401712

素因数分解:

$2^4\times 3^3\times {\mathrm{107}}^1\times {\mathrm{463}}^1$

素因数の和:587

約数の個数: 80

約数和(自身を含む): 62138880

約数和(自身を除く): 40737168

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 107, 108, 144, 214, 216, 321, 428, 432, 463, 642, 856, 926, 963, 1284, 1389, 1712, 1852, 1926, 2568, 2778, 2889, 3704, 3852, 4167, 5136, 5556, 5778, 7408, 7704, 8334, 11112, 11556, 12501, 15408, 16668, 22224, 23112, 25002, 33336, 46224, 49541, 50004, 66672, 99082, 100008, 148623, 198164, 200016, 297246, 396328, 445869, 594492, 792656, 891738, 1188984, 1337607, 1783476, 2377968, 2675214, 3566952, 5350428, 7133904, 10700856, 21401712]

約数ペア:

[(1, 21401712), (2, 10700856), (3, 7133904), (4, 5350428), (6, 3566952), (8, 2675214), (9, 2377968), (12, 1783476), (16, 1337607), (18, 1188984), (24, 891738), (27, 792656), (36, 594492), (48, 445869), (54, 396328), (72, 297246), (107, 200016), (108, 198164), (144, 148623), (214, 100008), (216, 99082), (321, 66672), (428, 50004), (432, 49541), (463, 46224), (642, 33336), (856, 25002), (926, 23112), (963, 22224), (1284, 16668), (1389, 15408), (1712, 12501), (1852, 11556), (1926, 11112), (2568, 8334), (2778, 7704), (2889, 7408), (3704, 5778), (3852, 5556), (4167, 5136)]