20914816

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12569}}^1$

素因数の和:12596

約数の個数: 32

約数和(自身を含む): 44874900

約数和(自身を除く): 23960084

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12569, 25138, 50276, 100552, 163397, 201104, 326794, 402208, 653588, 804416, 1307176, 1608832, 2614352, 5228704, 10457408, 20914816]

約数ペア:

[(1, 20914816), (2, 10457408), (4, 5228704), (8, 2614352), (13, 1608832), (16, 1307176), (26, 804416), (32, 653588), (52, 402208), (64, 326794), (104, 201104), (128, 163397), (208, 100552), (416, 50276), (832, 25138), (1664, 12569)]