19968128

素因数分解:

$2^7\times {\mathrm{73}}^1\times {\mathrm{2137}}^1$

素因数の和:2224

約数の個数: 32

約数和(自身を含む): 40344060

約数和(自身を除く): 20375932

約数列:

[1, 2, 4, 8, 16, 32, 64, 73, 128, 146, 292, 584, 1168, 2137, 2336, 4274, 4672, 8548, 9344, 17096, 34192, 68384, 136768, 156001, 273536, 312002, 624004, 1248008, 2496016, 4992032, 9984064, 19968128]

約数ペア:

[(1, 19968128), (2, 9984064), (4, 4992032), (8, 2496016), (16, 1248008), (32, 624004), (64, 312002), (73, 273536), (128, 156001), (146, 136768), (292, 68384), (584, 34192), (1168, 17096), (2137, 9344), (2336, 8548), (4274, 4672)]