21436928

素因数分解:

$2^9\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:448

約数の個数: 40

約数和(自身を含む): 43272900

約数和(自身を除く): 21835972

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 149, 256, 281, 298, 512, 562, 596, 1124, 1192, 2248, 2384, 4496, 4768, 8992, 9536, 17984, 19072, 35968, 38144, 41869, 71936, 76288, 83738, 143872, 167476, 334952, 669904, 1339808, 2679616, 5359232, 10718464, 21436928]

約数ペア:

[(1, 21436928), (2, 10718464), (4, 5359232), (8, 2679616), (16, 1339808), (32, 669904), (64, 334952), (128, 167476), (149, 143872), (256, 83738), (281, 76288), (298, 71936), (512, 41869), (562, 38144), (596, 35968), (1124, 19072), (1192, 17984), (2248, 9536), (2384, 8992), (4496, 4768)]