21345144

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 33950856

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 127, 141, 149, 188, 254, 282, 298, 376, 381, 447, 508, 564, 596, 762, 894, 1016, 1128, 1192, 1524, 1788, 3048, 3576, 5969, 7003, 11938, 14006, 17907, 18923, 21009, 23876, 28012, 35814, 37846, 42018, 47752, 56024, 56769, 71628, 75692, 84036, 113538, 143256, 151384, 168072, 227076, 454152, 889381, 1778762, 2668143, 3557524, 5336286, 7115048, 10672572, 21345144]

約数ペア:

[(1, 21345144), (2, 10672572), (3, 7115048), (4, 5336286), (6, 3557524), (8, 2668143), (12, 1778762), (24, 889381), (47, 454152), (94, 227076), (127, 168072), (141, 151384), (149, 143256), (188, 113538), (254, 84036), (282, 75692), (298, 71628), (376, 56769), (381, 56024), (447, 47752), (508, 42018), (564, 37846), (596, 35814), (762, 28012), (894, 23876), (1016, 21009), (1128, 18923), (1192, 17907), (1524, 14006), (1788, 11938), (3048, 7003), (3576, 5969)]