21531648

素因数分解:

$2^{10}\times 3^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:229

約数の個数: 88

約数和(自身を含む): 59084608

約数和(自身を除く): 37552960

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 64, 86, 96, 128, 129, 163, 172, 192, 256, 258, 326, 344, 384, 489, 512, 516, 652, 688, 768, 978, 1024, 1032, 1304, 1376, 1536, 1956, 2064, 2608, 2752, 3072, 3912, 4128, 5216, 5504, 7009, 7824, 8256, 10432, 11008, 14018, 15648, 16512, 20864, 21027, 22016, 28036, 31296, 33024, 41728, 42054, 44032, 56072, 62592, 66048, 83456, 84108, 112144, 125184, 132096, 166912, 168216, 224288, 250368, 336432, 448576, 500736, 672864, 897152, 1345728, 1794304, 2691456, 3588608, 5382912, 7177216, 10765824, 21531648]

約数ペア:

[(1, 21531648), (2, 10765824), (3, 7177216), (4, 5382912), (6, 3588608), (8, 2691456), (12, 1794304), (16, 1345728), (24, 897152), (32, 672864), (43, 500736), (48, 448576), (64, 336432), (86, 250368), (96, 224288), (128, 168216), (129, 166912), (163, 132096), (172, 125184), (192, 112144), (256, 84108), (258, 83456), (326, 66048), (344, 62592), (384, 56072), (489, 44032), (512, 42054), (516, 41728), (652, 33024), (688, 31296), (768, 28036), (978, 22016), (1024, 21027), (1032, 20864), (1304, 16512), (1376, 15648), (1536, 14018), (1956, 11008), (2064, 10432), (2608, 8256), (2752, 7824), (3072, 7009), (3912, 5504), (4128, 5216)]