21207328

素因数分解:

$2^5\times {\mathrm{131}}^1\times {\mathrm{5059}}^1$

素因数の和:5200

約数の個数: 24

約数和(自身を含む): 42078960

約数和(自身を除く): 20871632

約数列:

[1, 2, 4, 8, 16, 32, 131, 262, 524, 1048, 2096, 4192, 5059, 10118, 20236, 40472, 80944, 161888, 662729, 1325458, 2650916, 5301832, 10603664, 21207328]

約数ペア:

[(1, 21207328), (2, 10603664), (4, 5301832), (8, 2650916), (16, 1325458), (32, 662729), (131, 161888), (262, 80944), (524, 40472), (1048, 20236), (2096, 10118), (4192, 5059)]