20973392

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{443}}^1$

素因数の和:731

約数の個数: 40

約数和(自身を含む): 44595360

約数和(自身を除く): 23621968

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 269, 443, 538, 886, 1076, 1772, 2152, 2959, 3544, 4304, 4873, 5918, 7088, 9746, 11836, 19492, 23672, 38984, 47344, 77968, 119167, 238334, 476668, 953336, 1310837, 1906672, 2621674, 5243348, 10486696, 20973392]

約数ペア:

[(1, 20973392), (2, 10486696), (4, 5243348), (8, 2621674), (11, 1906672), (16, 1310837), (22, 953336), (44, 476668), (88, 238334), (176, 119167), (269, 77968), (443, 47344), (538, 38984), (886, 23672), (1076, 19492), (1772, 11836), (2152, 9746), (2959, 7088), (3544, 5918), (4304, 4873)]