20120853893

素因数分解:

$7^1\times {\mathrm{31}}^2\times {\mathrm{401}}^1\times {\mathrm{7459}}^1$

素因数の和:7929

約数の個数: 24

約数和(自身を含む): 23823420480

約数和(自身を除く): 3702566587

約数列:

[1, 7, 31, 217, 401, 961, 2807, 6727, 7459, 12431, 52213, 87017, 231229, 385361, 1618603, 2697527, 2991059, 7168099, 20937413, 50176693, 92722829, 649059803, 2874407699, 20120853893]

約数ペア:

[(1, 20120853893), (7, 2874407699), (31, 649059803), (217, 92722829), (401, 50176693), (961, 20937413), (2807, 7168099), (6727, 2991059), (7459, 2697527), (12431, 1618603), (52213, 385361), (87017, 231229)]