19418487

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 10233993

約数列:

[1, 3, 11, 29, 33, 87, 103, 197, 309, 319, 591, 957, 1133, 2167, 2987, 3399, 5713, 6501, 8961, 17139, 20291, 32857, 60873, 62843, 98571, 188529, 223201, 588439, 669603, 1765317, 6472829, 19418487]

約数ペア:

[(1, 19418487), (3, 6472829), (11, 1765317), (29, 669603), (33, 588439), (87, 223201), (103, 188529), (197, 98571), (309, 62843), (319, 60873), (591, 32857), (957, 20291), (1133, 17139), (2167, 8961), (2987, 6501), (3399, 5713)]