25931984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{124673}}^1$

素因数の和:124694

約数の個数: 20

約数和(自身を含む): 54108516

約数和(自身を除く): 28176532

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 124673, 249346, 498692, 997384, 1620749, 1994768, 3241498, 6482996, 12965992, 25931984]

約数ペア:

[(1, 25931984), (2, 12965992), (4, 6482996), (8, 3241498), (13, 1994768), (16, 1620749), (26, 997384), (52, 498692), (104, 249346), (208, 124673)]