19864468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{5233}}^1$

素因数の和:5323

約数の個数: 24

約数和(自身を含む): 37956968

約数和(自身を除く): 18092500

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 949, 1898, 3796, 5233, 10466, 20932, 68029, 136058, 272116, 382009, 764018, 1528036, 4966117, 9932234, 19864468]

約数ペア:

[(1, 19864468), (2, 9932234), (4, 4966117), (13, 1528036), (26, 764018), (52, 382009), (73, 272116), (146, 136058), (292, 68029), (949, 20932), (1898, 10466), (3796, 5233)]