26399984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{126923}}^1$

素因数の和:126944

約数の個数: 20

約数和(自身を含む): 55085016

約数和(自身を除く): 28685032

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 126923, 253846, 507692, 1015384, 1649999, 2030768, 3299998, 6599996, 13199992, 26399984]

約数ペア:

[(1, 26399984), (2, 13199992), (4, 6599996), (8, 3299998), (13, 2030768), (16, 1649999), (26, 1015384), (52, 507692), (104, 253846), (208, 126923)]