20975104

素因数分解:

$2^9\times {\mathrm{71}}^1\times {\mathrm{577}}^1$

素因数の和:666

約数の個数: 40

約数和(自身を含む): 42573168

約数和(自身を除く): 21598064

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 512, 568, 577, 1136, 1154, 2272, 2308, 4544, 4616, 9088, 9232, 18176, 18464, 36352, 36928, 40967, 73856, 81934, 147712, 163868, 295424, 327736, 655472, 1310944, 2621888, 5243776, 10487552, 20975104]

約数ペア:

[(1, 20975104), (2, 10487552), (4, 5243776), (8, 2621888), (16, 1310944), (32, 655472), (64, 327736), (71, 295424), (128, 163868), (142, 147712), (256, 81934), (284, 73856), (512, 40967), (568, 36928), (577, 36352), (1136, 18464), (1154, 18176), (2272, 9232), (2308, 9088), (4544, 4616)]