21781952

素因数分解:

$2^6\times {\mathrm{211}}^1\times {\mathrm{1613}}^1$

素因数の和:1836

約数の個数: 28

約数和(自身を含む): 43455336

約数和(自身を除く): 21673384

約数列:

[1, 2, 4, 8, 16, 32, 64, 211, 422, 844, 1613, 1688, 3226, 3376, 6452, 6752, 12904, 13504, 25808, 51616, 103232, 340343, 680686, 1361372, 2722744, 5445488, 10890976, 21781952]

約数ペア:

[(1, 21781952), (2, 10890976), (4, 5445488), (8, 2722744), (16, 1361372), (32, 680686), (64, 340343), (211, 103232), (422, 51616), (844, 25808), (1613, 13504), (1688, 12904), (3226, 6752), (3376, 6452)]