21107782076

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{170224049}}^1$

素因数の和:170224084

約数の個数: 12

約数和(自身を含む): 38130187200

約数和(自身を除く): 17022405124

約数列:

[1, 2, 4, 31, 62, 124, 170224049, 340448098, 680896196, 5276945519, 10553891038, 21107782076]

約数ペア:

[(1, 21107782076), (2, 10553891038), (4, 5276945519), (31, 680896196), (62, 340448098), (124, 170224049)]