20866816

素因数分解:

$2^8\times {\mathrm{37}}^1\times {\mathrm{2203}}^1$

素因数の和:2256

約数の個数: 36

約数和(自身を含む): 42797272

約数和(自身を除く): 21930456

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 128, 148, 256, 296, 592, 1184, 2203, 2368, 4406, 4736, 8812, 9472, 17624, 35248, 70496, 81511, 140992, 163022, 281984, 326044, 563968, 652088, 1304176, 2608352, 5216704, 10433408, 20866816]

約数ペア:

[(1, 20866816), (2, 10433408), (4, 5216704), (8, 2608352), (16, 1304176), (32, 652088), (37, 563968), (64, 326044), (74, 281984), (128, 163022), (148, 140992), (256, 81511), (296, 70496), (592, 35248), (1184, 17624), (2203, 9472), (2368, 8812), (4406, 4736)]