21066968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{202567}}^1$

素因数の和:202586

約数の個数: 16

約数和(自身を含む): 42539280

約数和(自身を除く): 21472312

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 202567, 405134, 810268, 1620536, 2633371, 5266742, 10533484, 21066968]

約数ペア:

[(1, 21066968), (2, 10533484), (4, 5266742), (8, 2633371), (13, 1620536), (26, 810268), (52, 405134), (104, 202567)]