21804938

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1\times {\mathrm{487}}^1$

素因数の和:917

約数の個数: 16

約数和(自身を含む): 33402624

約数和(自身を除く): 11597686

約数列:

[1, 2, 61, 122, 367, 487, 734, 974, 22387, 29707, 44774, 59414, 178729, 357458, 10902469, 21804938]

約数ペア:

[(1, 21804938), (2, 10902469), (61, 357458), (122, 178729), (367, 59414), (487, 44774), (734, 29707), (974, 22387)]