20555961808

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1425913}}^1$

素因数の和:1425991

約数の個数: 40

約数和(自身を含む): 42965640648

約数和(自身を除く): 22409678840

約数列:

[1, 2, 4, 8, 16, 17, 34, 53, 68, 106, 136, 212, 272, 424, 848, 901, 1802, 3604, 7208, 14416, 1425913, 2851826, 5703652, 11407304, 22814608, 24240521, 48481042, 75573389, 96962084, 151146778, 193924168, 302293556, 387848336, 604587112, 1209174224, 1284747613, 2569495226, 5138990452, 10277980904, 20555961808]

約数ペア:

[(1, 20555961808), (2, 10277980904), (4, 5138990452), (8, 2569495226), (16, 1284747613), (17, 1209174224), (34, 604587112), (53, 387848336), (68, 302293556), (106, 193924168), (136, 151146778), (212, 96962084), (272, 75573389), (424, 48481042), (848, 24240521), (901, 22814608), (1802, 11407304), (3604, 5703652), (7208, 2851826), (14416, 1425913)]