21548272

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{20101}}^1$

素因数の和:20176

約数の個数: 20

約数和(自身を含む): 42375016

約数和(自身を除く): 20826744

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 20101, 40202, 80404, 160808, 321616, 1346767, 2693534, 5387068, 10774136, 21548272]

約数ペア:

[(1, 21548272), (2, 10774136), (4, 5387068), (8, 2693534), (16, 1346767), (67, 321616), (134, 160808), (268, 80404), (536, 40202), (1072, 20101)]