21455872

素因数分解:

$2^{10}\times {\mathrm{23}}^1\times {\mathrm{911}}^1$

素因数の和:954

約数の個数: 44

約数和(自身を含む): 44804736

約数和(自身を除く): 23348864

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 368, 512, 736, 911, 1024, 1472, 1822, 2944, 3644, 5888, 7288, 11776, 14576, 20953, 23552, 29152, 41906, 58304, 83812, 116608, 167624, 233216, 335248, 466432, 670496, 932864, 1340992, 2681984, 5363968, 10727936, 21455872]

約数ペア:

[(1, 21455872), (2, 10727936), (4, 5363968), (8, 2681984), (16, 1340992), (23, 932864), (32, 670496), (46, 466432), (64, 335248), (92, 233216), (128, 167624), (184, 116608), (256, 83812), (368, 58304), (512, 41906), (736, 29152), (911, 23552), (1024, 20953), (1472, 14576), (1822, 11776), (2944, 7288), (3644, 5888)]