21091416

素因数分解:

$2^3\times 3^1\times {\mathrm{431}}^1\times {\mathrm{2039}}^1$

素因数の和:2479

約数の個数: 32

約数和(自身を含む): 52876800

約数和(自身を除く): 31785384

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 431, 862, 1293, 1724, 2039, 2586, 3448, 4078, 5172, 6117, 8156, 10344, 12234, 16312, 24468, 48936, 878809, 1757618, 2636427, 3515236, 5272854, 7030472, 10545708, 21091416]

約数ペア:

[(1, 21091416), (2, 10545708), (3, 7030472), (4, 5272854), (6, 3515236), (8, 2636427), (12, 1757618), (24, 878809), (431, 48936), (862, 24468), (1293, 16312), (1724, 12234), (2039, 10344), (2586, 8156), (3448, 6117), (4078, 5172)]