21000478592

素因数分解:

$2^7\times {\mathrm{2473}}^1\times {\mathrm{66343}}^1$

素因数の和:68830

約数の個数: 32

約数和(自身を含む): 41854439280

約数和(自身を除く): 20853960688

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 2473, 4946, 9892, 19784, 39568, 66343, 79136, 132686, 158272, 265372, 316544, 530744, 1061488, 2122976, 4245952, 8491904, 164066239, 328132478, 656264956, 1312529912, 2625059824, 5250119648, 10500239296, 21000478592]

約数ペア:

[(1, 21000478592), (2, 10500239296), (4, 5250119648), (8, 2625059824), (16, 1312529912), (32, 656264956), (64, 328132478), (128, 164066239), (2473, 8491904), (4946, 4245952), (9892, 2122976), (19784, 1061488), (39568, 530744), (66343, 316544), (79136, 265372), (132686, 158272)]