19989195

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1823}}^1$

素因数の和:1891

約数の個数: 32

約数和(自身を含む): 34670592

約数和(自身を除く): 14681397

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 129, 215, 255, 645, 731, 1823, 2193, 3655, 5469, 9115, 10965, 27345, 30991, 78389, 92973, 154955, 235167, 391945, 464865, 1175835, 1332613, 3997839, 6663065, 19989195]

約数ペア:

[(1, 19989195), (3, 6663065), (5, 3997839), (15, 1332613), (17, 1175835), (43, 464865), (51, 391945), (85, 235167), (129, 154955), (215, 92973), (255, 78389), (645, 30991), (731, 27345), (1823, 10965), (2193, 9115), (3655, 5469)]