20554496

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{4723}}^1$

素因数の和:4756

約数の個数: 36

約数和(自身を含む): 43451352

約数和(自身を除く): 22896856

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 544, 1088, 2176, 4352, 4723, 9446, 18892, 37784, 75568, 80291, 151136, 160582, 302272, 321164, 604544, 642328, 1209088, 1284656, 2569312, 5138624, 10277248, 20554496]

約数ペア:

[(1, 20554496), (2, 10277248), (4, 5138624), (8, 2569312), (16, 1284656), (17, 1209088), (32, 642328), (34, 604544), (64, 321164), (68, 302272), (128, 160582), (136, 151136), (256, 80291), (272, 75568), (544, 37784), (1088, 18892), (2176, 9446), (4352, 4723)]