18521984

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{11131}}^1$

素因数の和:11158

約数の個数: 32

約数和(自身を含む): 39741240

約数和(自身を除く): 21219256

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 11131, 22262, 44524, 89048, 144703, 178096, 289406, 356192, 578812, 712384, 1157624, 1424768, 2315248, 4630496, 9260992, 18521984]

約数ペア:

[(1, 18521984), (2, 9260992), (4, 4630496), (8, 2315248), (13, 1424768), (16, 1157624), (26, 712384), (32, 578812), (52, 356192), (64, 289406), (104, 178096), (128, 144703), (208, 89048), (416, 44524), (832, 22262), (1664, 11131)]