21564672

素因数分解:

$2^8\times 3^1\times {\mathrm{43}}^1\times {\mathrm{653}}^1$

素因数の和:715

約数の個数: 72

約数和(自身を含む): 58818144

約数和(自身を除く): 37253472

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 64, 86, 96, 128, 129, 172, 192, 256, 258, 344, 384, 516, 653, 688, 768, 1032, 1306, 1376, 1959, 2064, 2612, 2752, 3918, 4128, 5224, 5504, 7836, 8256, 10448, 11008, 15672, 16512, 20896, 28079, 31344, 33024, 41792, 56158, 62688, 83584, 84237, 112316, 125376, 167168, 168474, 224632, 250752, 336948, 449264, 501504, 673896, 898528, 1347792, 1797056, 2695584, 3594112, 5391168, 7188224, 10782336, 21564672]

約数ペア:

[(1, 21564672), (2, 10782336), (3, 7188224), (4, 5391168), (6, 3594112), (8, 2695584), (12, 1797056), (16, 1347792), (24, 898528), (32, 673896), (43, 501504), (48, 449264), (64, 336948), (86, 250752), (96, 224632), (128, 168474), (129, 167168), (172, 125376), (192, 112316), (256, 84237), (258, 83584), (344, 62688), (384, 56158), (516, 41792), (653, 33024), (688, 31344), (768, 28079), (1032, 20896), (1306, 16512), (1376, 15672), (1959, 11008), (2064, 10448), (2612, 8256), (2752, 7836), (3918, 5504), (4128, 5224)]