8400819987

素因数分解:

$3^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{135929}}^1$

素因数の和:136057

約数の個数: 40

約数和(自身を含む): 14473826400

約数和(自身を除く): 6073006413

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 109, 189, 327, 567, 763, 981, 2289, 2943, 6867, 8829, 20601, 61803, 135929, 407787, 951503, 1223361, 2854509, 3670083, 8563527, 11010249, 14816261, 25690581, 44448783, 77071743, 103713827, 133346349, 311141481, 400039047, 933424443, 1200117141, 2800273329, 8400819987]

約数ペア:

[(1, 8400819987), (3, 2800273329), (7, 1200117141), (9, 933424443), (21, 400039047), (27, 311141481), (63, 133346349), (81, 103713827), (109, 77071743), (189, 44448783), (327, 25690581), (567, 14816261), (763, 11010249), (981, 8563527), (2289, 3670083), (2943, 2854509), (6867, 1223361), (8829, 951503), (20601, 407787), (61803, 135929)]