21103456

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{359}}^1$

素因数の和:547

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24619424

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 167, 176, 334, 352, 359, 668, 718, 1336, 1436, 1837, 2672, 2872, 3674, 3949, 5344, 5744, 7348, 7898, 11488, 14696, 15796, 29392, 31592, 58784, 59953, 63184, 119906, 126368, 239812, 479624, 659483, 959248, 1318966, 1918496, 2637932, 5275864, 10551728, 21103456]

約数ペア:

[(1, 21103456), (2, 10551728), (4, 5275864), (8, 2637932), (11, 1918496), (16, 1318966), (22, 959248), (32, 659483), (44, 479624), (88, 239812), (167, 126368), (176, 119906), (334, 63184), (352, 59953), (359, 58784), (668, 31592), (718, 29392), (1336, 15796), (1436, 14696), (1837, 11488), (2672, 7898), (2872, 7348), (3674, 5744), (3949, 5344)]