21211658

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:566

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 15076342

約数列:

[1, 2, 13, 23, 26, 46, 79, 158, 299, 449, 598, 898, 1027, 1817, 2054, 3634, 5837, 10327, 11674, 20654, 23621, 35471, 47242, 70942, 134251, 268502, 461123, 815833, 922246, 1631666, 10605829, 21211658]

約数ペア:

[(1, 21211658), (2, 10605829), (13, 1631666), (23, 922246), (26, 815833), (46, 461123), (79, 268502), (158, 134251), (299, 70942), (449, 47242), (598, 35471), (898, 23621), (1027, 20654), (1817, 11674), (2054, 10327), (3634, 5837)]