21995104

素因数分解:

$2^5\times {\mathrm{89}}^1\times {\mathrm{7723}}^1$

素因数の和:7822

約数の個数: 24

約数和(自身を含む): 43795080

約数和(自身を除く): 21799976

約数列:

[1, 2, 4, 8, 16, 32, 89, 178, 356, 712, 1424, 2848, 7723, 15446, 30892, 61784, 123568, 247136, 687347, 1374694, 2749388, 5498776, 10997552, 21995104]

約数ペア:

[(1, 21995104), (2, 10997552), (4, 5498776), (8, 2749388), (16, 1374694), (32, 687347), (89, 247136), (178, 123568), (356, 61784), (712, 30892), (1424, 15446), (2848, 7723)]