18447387

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 29736960

約数和(自身を除く): 11289573

約数列:

[1, 3, 7, 21, 31, 43, 93, 129, 217, 301, 651, 659, 903, 1333, 1977, 3999, 4613, 9331, 13839, 20429, 27993, 28337, 61287, 85011, 143003, 198359, 429009, 595077, 878447, 2635341, 6149129, 18447387]

約数ペア:

[(1, 18447387), (3, 6149129), (7, 2635341), (21, 878447), (31, 595077), (43, 429009), (93, 198359), (129, 143003), (217, 85011), (301, 61287), (651, 28337), (659, 27993), (903, 20429), (1333, 13839), (1977, 9331), (3999, 4613)]