21465728

素因数分解:

$2^7\times {\mathrm{67}}^1\times {\mathrm{2503}}^1$

素因数の和:2584

約数の個数: 32

約数和(自身を含む): 43419360

約数和(自身を除く): 21953632

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 268, 536, 1072, 2144, 2503, 4288, 5006, 8576, 10012, 20024, 40048, 80096, 160192, 167701, 320384, 335402, 670804, 1341608, 2683216, 5366432, 10732864, 21465728]

約数ペア:

[(1, 21465728), (2, 10732864), (4, 5366432), (8, 2683216), (16, 1341608), (32, 670804), (64, 335402), (67, 320384), (128, 167701), (134, 160192), (268, 80096), (536, 40048), (1072, 20024), (2144, 10012), (2503, 8576), (4288, 5006)]