21012056

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{719}}^1$

素因数の和:1019

約数の個数: 32

約数和(自身を含む): 42638400

約数和(自身を除く): 21626344

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 281, 562, 719, 1124, 1438, 2248, 2876, 3653, 5752, 7306, 9347, 14612, 18694, 29224, 37388, 74776, 202039, 404078, 808156, 1616312, 2626507, 5253014, 10506028, 21012056]

約数ペア:

[(1, 21012056), (2, 10506028), (4, 5253014), (8, 2626507), (13, 1616312), (26, 808156), (52, 404078), (104, 202039), (281, 74776), (562, 37388), (719, 29224), (1124, 18694), (1438, 14612), (2248, 9347), (2876, 7306), (3653, 5752)]