20278972

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{16843}}^1$

素因数の和:16897

約数の個数: 24

約数和(自身を含む): 41503616

約数和(自身を除く): 21224644

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 16843, 33686, 67372, 117901, 235802, 471604, 724249, 1448498, 2896996, 5069743, 10139486, 20278972]

約数ペア:

[(1, 20278972), (2, 10139486), (4, 5069743), (7, 2896996), (14, 1448498), (28, 724249), (43, 471604), (86, 235802), (172, 117901), (301, 67372), (602, 33686), (1204, 16843)]