20984704

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12611}}^1$

素因数の和:12638

約数の個数: 32

約数和(自身を含む): 45024840

約数和(自身を除く): 24040136

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12611, 25222, 50444, 100888, 163943, 201776, 327886, 403552, 655772, 807104, 1311544, 1614208, 2623088, 5246176, 10492352, 20984704]

約数ペア:

[(1, 20984704), (2, 10492352), (4, 5246176), (8, 2623088), (13, 1614208), (16, 1311544), (26, 807104), (32, 655772), (52, 403552), (64, 327886), (104, 201776), (128, 163943), (208, 100888), (416, 50444), (832, 25222), (1664, 12611)]