218814128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1051991}}^1$

素因数の和:1052012

約数の個数: 20

約数和(自身を含む): 456564528

約数和(自身を除く): 237750400

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1051991, 2103982, 4207964, 8415928, 13675883, 16831856, 27351766, 54703532, 109407064, 218814128]

約数ペア:

[(1, 218814128), (2, 109407064), (4, 54703532), (8, 27351766), (13, 16831856), (16, 13675883), (26, 8415928), (52, 4207964), (104, 2103982), (208, 1051991)]