20816952

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{66721}}^1$

素因数の和:66743

約数の個数: 32

約数和(自身を含む): 56046480

約数和(自身を除く): 35229528

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 66721, 133442, 200163, 266884, 400326, 533768, 800652, 867373, 1601304, 1734746, 2602119, 3469492, 5204238, 6938984, 10408476, 20816952]

約数ペア:

[(1, 20816952), (2, 10408476), (3, 6938984), (4, 5204238), (6, 3469492), (8, 2602119), (12, 1734746), (13, 1601304), (24, 867373), (26, 800652), (39, 533768), (52, 400326), (78, 266884), (104, 200163), (156, 133442), (312, 66721)]