20797036

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 40981248

約数和(自身を除く): 20184212

約数列:

[1, 2, 4, 13, 26, 43, 52, 71, 86, 131, 142, 172, 262, 284, 524, 559, 923, 1118, 1703, 1846, 2236, 3053, 3406, 3692, 5633, 6106, 6812, 9301, 11266, 12212, 18602, 22532, 37204, 39689, 73229, 79378, 120913, 146458, 158756, 241826, 292916, 399943, 483652, 799886, 1599772, 5199259, 10398518, 20797036]

約数ペア:

[(1, 20797036), (2, 10398518), (4, 5199259), (13, 1599772), (26, 799886), (43, 483652), (52, 399943), (71, 292916), (86, 241826), (131, 158756), (142, 146458), (172, 120913), (262, 79378), (284, 73229), (524, 39689), (559, 37204), (923, 22532), (1118, 18602), (1703, 12212), (1846, 11266), (2236, 9301), (3053, 6812), (3406, 6106), (3692, 5633)]