21364408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{205427}}^1$

素因数の和:205446

約数の個数: 16

約数和(自身を含む): 43139880

約数和(自身を除く): 21775472

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 205427, 410854, 821708, 1643416, 2670551, 5341102, 10682204, 21364408]

約数ペア:

[(1, 21364408), (2, 10682204), (4, 5341102), (8, 2670551), (13, 1643416), (26, 821708), (52, 410854), (104, 205427)]