21158254

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{10301}}^1$

素因数の和:10395

約数の個数: 16

約数和(自身を含む): 34614720

約数和(自身を除く): 13456466

約数列:

[1, 2, 13, 26, 79, 158, 1027, 2054, 10301, 20602, 133913, 267826, 813779, 1627558, 10579127, 21158254]

約数ペア:

[(1, 21158254), (2, 10579127), (13, 1627558), (26, 813779), (79, 267826), (158, 133913), (1027, 20602), (2054, 10301)]