219040665

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{1993}}^1$

素因数の和:2449

約数の個数: 32

約数和(自身を含む): 372128256

約数和(自身を除く): 153087591

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 431, 1293, 1993, 2155, 5979, 6465, 7327, 9965, 21981, 29895, 33881, 36635, 101643, 109905, 169405, 508215, 858983, 2576949, 4294915, 12884745, 14602711, 43808133, 73013555, 219040665]

約数ペア:

[(1, 219040665), (3, 73013555), (5, 43808133), (15, 14602711), (17, 12884745), (51, 4294915), (85, 2576949), (255, 858983), (431, 508215), (1293, 169405), (1993, 109905), (2155, 101643), (5979, 36635), (6465, 33881), (7327, 29895), (9965, 21981)]