21128784

素因数分解:

$2^4\times 3^1\times {\mathrm{440183}}^1$

素因数の和:440194

約数の個数: 20

約数和(自身を含む): 54582816

約数和(自身を除く): 33454032

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 440183, 880366, 1320549, 1760732, 2641098, 3521464, 5282196, 7042928, 10564392, 21128784]

約数ペア:

[(1, 21128784), (2, 10564392), (3, 7042928), (4, 5282196), (6, 3521464), (8, 2641098), (12, 1760732), (16, 1320549), (24, 880366), (48, 440183)]