21294976

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 44835120

約数和(自身を除く): 23540144

約数列:

[1, 2, 4, 8, 16, 32, 43, 53, 64, 73, 86, 106, 128, 146, 172, 212, 292, 344, 424, 584, 688, 848, 1168, 1376, 1696, 2279, 2336, 2752, 3139, 3392, 3869, 4558, 4672, 5504, 6278, 6784, 7738, 9116, 9344, 12556, 15476, 18232, 25112, 30952, 36464, 50224, 61904, 72928, 100448, 123808, 145856, 166367, 200896, 247616, 291712, 332734, 401792, 495232, 665468, 1330936, 2661872, 5323744, 10647488, 21294976]

約数ペア:

[(1, 21294976), (2, 10647488), (4, 5323744), (8, 2661872), (16, 1330936), (32, 665468), (43, 495232), (53, 401792), (64, 332734), (73, 291712), (86, 247616), (106, 200896), (128, 166367), (146, 145856), (172, 123808), (212, 100448), (292, 72928), (344, 61904), (424, 50224), (584, 36464), (688, 30952), (848, 25112), (1168, 18232), (1376, 15476), (1696, 12556), (2279, 9344), (2336, 9116), (2752, 7738), (3139, 6784), (3392, 6278), (3869, 5504), (4558, 4672)]