21250922

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137993}}^1$

素因数の和:138013

約数の個数: 16

約数和(自身を含む): 39742272

約数和(自身を除く): 18491350

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 137993, 275986, 965951, 1517923, 1931902, 3035846, 10625461, 21250922]

約数ペア:

[(1, 21250922), (2, 10625461), (7, 3035846), (11, 1931902), (14, 1517923), (22, 965951), (77, 275986), (154, 137993)]