21080704

素因数分解:

$2^7\times {\mathrm{157}}^1\times {\mathrm{1049}}^1$

素因数の和:1220

約数の個数: 32

約数和(自身を含む): 42304500

約数和(自身を除く): 21223796

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 157, 314, 628, 1049, 1256, 2098, 2512, 4196, 5024, 8392, 10048, 16784, 20096, 33568, 67136, 134272, 164693, 329386, 658772, 1317544, 2635088, 5270176, 10540352, 21080704]

約数ペア:

[(1, 21080704), (2, 10540352), (4, 5270176), (8, 2635088), (16, 1317544), (32, 658772), (64, 329386), (128, 164693), (157, 134272), (314, 67136), (628, 33568), (1049, 20096), (1256, 16784), (2098, 10048), (2512, 8392), (4196, 5024)]