21088672

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:533

約数の個数: 48

約数和(自身を含む): 45680544

約数和(自身を除く): 24591872

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 181, 331, 352, 362, 662, 724, 1324, 1448, 1991, 2648, 2896, 3641, 3982, 5296, 5792, 7282, 7964, 10592, 14564, 15928, 29128, 31856, 58256, 59911, 63712, 116512, 119822, 239644, 479288, 659021, 958576, 1318042, 1917152, 2636084, 5272168, 10544336, 21088672]

約数ペア:

[(1, 21088672), (2, 10544336), (4, 5272168), (8, 2636084), (11, 1917152), (16, 1318042), (22, 958576), (32, 659021), (44, 479288), (88, 239644), (176, 119822), (181, 116512), (331, 63712), (352, 59911), (362, 58256), (662, 31856), (724, 29128), (1324, 15928), (1448, 14564), (1991, 10592), (2648, 7964), (2896, 7282), (3641, 5792), (3982, 5296)]