21565952

素因数分解:

$2^9\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:668

約数の個数: 40

約数和(自身を含む): 43755756

約数和(自身を除く): 22189804

約数列:

[1, 2, 4, 8, 16, 32, 64, 73, 128, 146, 256, 292, 512, 577, 584, 1154, 1168, 2308, 2336, 4616, 4672, 9232, 9344, 18464, 18688, 36928, 37376, 42121, 73856, 84242, 147712, 168484, 295424, 336968, 673936, 1347872, 2695744, 5391488, 10782976, 21565952]

約数ペア:

[(1, 21565952), (2, 10782976), (4, 5391488), (8, 2695744), (16, 1347872), (32, 673936), (64, 336968), (73, 295424), (128, 168484), (146, 147712), (256, 84242), (292, 73856), (512, 42121), (577, 37376), (584, 36928), (1154, 18688), (1168, 18464), (2308, 9344), (2336, 9232), (4616, 4672)]