638531201

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2039}}^1$

素因数の和:2154

約数の個数: 32

約数和(自身を含む): 822528000

約数和(自身を除く): 183996799

約数列:

[1, 7, 11, 49, 77, 83, 343, 539, 581, 913, 2039, 3773, 4067, 6391, 14273, 22429, 28469, 44737, 99911, 157003, 169237, 313159, 699377, 1099021, 1184659, 1861607, 7693147, 8292613, 13031249, 58048291, 91218743, 638531201]

約数ペア:

[(1, 638531201), (7, 91218743), (11, 58048291), (49, 13031249), (77, 8292613), (83, 7693147), (343, 1861607), (539, 1184659), (581, 1099021), (913, 699377), (2039, 313159), (3773, 169237), (4067, 157003), (6391, 99911), (14273, 44737), (22429, 28469)]