21147288

素因数分解:

$2^3\times 3^1\times {\mathrm{277}}^1\times {\mathrm{3181}}^1$

素因数の和:3467

約数の個数: 32

約数和(自身を含む): 53075760

約数和(自身を除く): 31928472

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 277, 554, 831, 1108, 1662, 2216, 3181, 3324, 6362, 6648, 9543, 12724, 19086, 25448, 38172, 76344, 881137, 1762274, 2643411, 3524548, 5286822, 7049096, 10573644, 21147288]

約数ペア:

[(1, 21147288), (2, 10573644), (3, 7049096), (4, 5286822), (6, 3524548), (8, 2643411), (12, 1762274), (24, 881137), (277, 76344), (554, 38172), (831, 25448), (1108, 19086), (1662, 12724), (2216, 9543), (3181, 6648), (3324, 6362)]