20493886

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{577}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 36622080

約数和(自身を除く): 16128194

約数列:

[1, 2, 7, 14, 43, 59, 86, 118, 301, 413, 577, 602, 826, 1154, 2537, 4039, 5074, 8078, 17759, 24811, 34043, 35518, 49622, 68086, 173677, 238301, 347354, 476602, 1463849, 2927698, 10246943, 20493886]

約数ペア:

[(1, 20493886), (2, 10246943), (7, 2927698), (14, 1463849), (43, 476602), (59, 347354), (86, 238301), (118, 173677), (301, 68086), (413, 49622), (577, 35518), (602, 34043), (826, 24811), (1154, 17759), (2537, 8078), (4039, 5074)]