21115424

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{269}}^1$

素因数の和:513

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24607456

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 223, 269, 352, 446, 538, 892, 1076, 1784, 2152, 2453, 2959, 3568, 4304, 4906, 5918, 7136, 8608, 9812, 11836, 19624, 23672, 39248, 47344, 59987, 78496, 94688, 119974, 239948, 479896, 659857, 959792, 1319714, 1919584, 2639428, 5278856, 10557712, 21115424]

約数ペア:

[(1, 21115424), (2, 10557712), (4, 5278856), (8, 2639428), (11, 1919584), (16, 1319714), (22, 959792), (32, 659857), (44, 479896), (88, 239948), (176, 119974), (223, 94688), (269, 78496), (352, 59987), (446, 47344), (538, 39248), (892, 23672), (1076, 19624), (1784, 11836), (2152, 9812), (2453, 8608), (2959, 7136), (3568, 5918), (4304, 4906)]