19839776

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{359}}^1$

素因数の和:537

約数の個数: 48

約数和(自身を含む): 43001280

約数和(自身を除く): 23161504

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 157, 176, 314, 352, 359, 628, 718, 1256, 1436, 1727, 2512, 2872, 3454, 3949, 5024, 5744, 6908, 7898, 11488, 13816, 15796, 27632, 31592, 55264, 56363, 63184, 112726, 126368, 225452, 450904, 619993, 901808, 1239986, 1803616, 2479972, 4959944, 9919888, 19839776]

約数ペア:

[(1, 19839776), (2, 9919888), (4, 4959944), (8, 2479972), (11, 1803616), (16, 1239986), (22, 901808), (32, 619993), (44, 450904), (88, 225452), (157, 126368), (176, 112726), (314, 63184), (352, 56363), (359, 55264), (628, 31592), (718, 27632), (1256, 15796), (1436, 13816), (1727, 11488), (2512, 7898), (2872, 6908), (3454, 5744), (3949, 5024)]