20984172

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3697}}^1$

素因数の和:3758

約数の個数: 48

約数和(自身を含む): 54671232

約数和(自身を除く): 33687060

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 43, 44, 66, 86, 129, 132, 172, 258, 473, 516, 946, 1419, 1892, 2838, 3697, 5676, 7394, 11091, 14788, 22182, 40667, 44364, 81334, 122001, 158971, 162668, 244002, 317942, 476913, 488004, 635884, 953826, 1748681, 1907652, 3497362, 5246043, 6994724, 10492086, 20984172]

約数ペア:

[(1, 20984172), (2, 10492086), (3, 6994724), (4, 5246043), (6, 3497362), (11, 1907652), (12, 1748681), (22, 953826), (33, 635884), (43, 488004), (44, 476913), (66, 317942), (86, 244002), (129, 162668), (132, 158971), (172, 122001), (258, 81334), (473, 44364), (516, 40667), (946, 22182), (1419, 14788), (1892, 11091), (2838, 7394), (3697, 5676)]