21829288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{487}}^1$

素因数の和:937

約数の個数: 32

約数和(自身を含む): 44271360

約数和(自身を除く): 22442072

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 431, 487, 862, 974, 1724, 1948, 3448, 3896, 5603, 6331, 11206, 12662, 22412, 25324, 44824, 50648, 209897, 419794, 839588, 1679176, 2728661, 5457322, 10914644, 21829288]

約数ペア:

[(1, 21829288), (2, 10914644), (4, 5457322), (8, 2728661), (13, 1679176), (26, 839588), (52, 419794), (104, 209897), (431, 50648), (487, 44824), (862, 25324), (974, 22412), (1724, 12662), (1948, 11206), (3448, 6331), (3896, 5603)]