21095074

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 43690752

約数和(自身を除く): 22595678

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 41, 77, 82, 91, 143, 154, 182, 257, 286, 287, 451, 514, 533, 574, 902, 1001, 1066, 1799, 2002, 2827, 3157, 3341, 3598, 3731, 5654, 5863, 6314, 6682, 7462, 10537, 11726, 19789, 21074, 23387, 36751, 39578, 41041, 46774, 73502, 73759, 82082, 115907, 136981, 147518, 231814, 257257, 273962, 514514, 811349, 958867, 1506791, 1622698, 1917734, 3013582, 10547537, 21095074]

約数ペア:

[(1, 21095074), (2, 10547537), (7, 3013582), (11, 1917734), (13, 1622698), (14, 1506791), (22, 958867), (26, 811349), (41, 514514), (77, 273962), (82, 257257), (91, 231814), (143, 147518), (154, 136981), (182, 115907), (257, 82082), (286, 73759), (287, 73502), (451, 46774), (514, 41041), (533, 39578), (574, 36751), (902, 23387), (1001, 21074), (1066, 19789), (1799, 11726), (2002, 10537), (2827, 7462), (3157, 6682), (3341, 6314), (3598, 5863), (3731, 5654)]