20198486

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:525

約数の個数: 48

約数和(自身を含む): 39472272

約数和(自身を除く): 19273786

約数列:

[1, 2, 7, 11, 14, 22, 41, 49, 77, 82, 98, 154, 287, 451, 457, 539, 574, 902, 914, 1078, 2009, 3157, 3199, 4018, 5027, 6314, 6398, 10054, 18737, 22099, 22393, 35189, 37474, 44198, 44786, 70378, 131159, 206107, 246323, 262318, 412214, 492646, 918113, 1442749, 1836226, 2885498, 10099243, 20198486]

約数ペア:

[(1, 20198486), (2, 10099243), (7, 2885498), (11, 1836226), (14, 1442749), (22, 918113), (41, 492646), (49, 412214), (77, 262318), (82, 246323), (98, 206107), (154, 131159), (287, 70378), (451, 44786), (457, 44198), (539, 37474), (574, 35189), (902, 22393), (914, 22099), (1078, 18737), (2009, 10054), (3157, 6398), (3199, 6314), (4018, 5027)]