21392384

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{1607}}^1$

素因数の和:1640

約数の個数: 44

約数和(自身を含む): 46082064

約数和(自身を除く): 24689680

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1607, 1664, 3214, 3328, 6428, 6656, 12856, 13312, 20891, 25712, 41782, 51424, 83564, 102848, 167128, 205696, 334256, 411392, 668512, 822784, 1337024, 1645568, 2674048, 5348096, 10696192, 21392384]

約数ペア:

[(1, 21392384), (2, 10696192), (4, 5348096), (8, 2674048), (13, 1645568), (16, 1337024), (26, 822784), (32, 668512), (52, 411392), (64, 334256), (104, 205696), (128, 167128), (208, 102848), (256, 83564), (416, 51424), (512, 41782), (832, 25712), (1024, 20891), (1607, 13312), (1664, 12856), (3214, 6656), (3328, 6428)]