21906456

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{491}}^1$

素因数の和:537

約数の個数: 96

約数和(自身を含む): 64825920

約数和(自身を除く): 42919464

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 33, 39, 44, 52, 66, 78, 88, 104, 132, 143, 156, 169, 264, 286, 312, 338, 429, 491, 507, 572, 676, 858, 982, 1014, 1144, 1352, 1473, 1716, 1859, 1964, 2028, 2946, 3432, 3718, 3928, 4056, 5401, 5577, 5892, 6383, 7436, 10802, 11154, 11784, 12766, 14872, 16203, 19149, 21604, 22308, 25532, 32406, 38298, 43208, 44616, 51064, 64812, 70213, 76596, 82979, 129624, 140426, 153192, 165958, 210639, 248937, 280852, 331916, 421278, 497874, 561704, 663832, 842556, 912769, 995748, 1685112, 1825538, 1991496, 2738307, 3651076, 5476614, 7302152, 10953228, 21906456]

約数ペア:

[(1, 21906456), (2, 10953228), (3, 7302152), (4, 5476614), (6, 3651076), (8, 2738307), (11, 1991496), (12, 1825538), (13, 1685112), (22, 995748), (24, 912769), (26, 842556), (33, 663832), (39, 561704), (44, 497874), (52, 421278), (66, 331916), (78, 280852), (88, 248937), (104, 210639), (132, 165958), (143, 153192), (156, 140426), (169, 129624), (264, 82979), (286, 76596), (312, 70213), (338, 64812), (429, 51064), (491, 44616), (507, 43208), (572, 38298), (676, 32406), (858, 25532), (982, 22308), (1014, 21604), (1144, 19149), (1352, 16203), (1473, 14872), (1716, 12766), (1859, 11784), (1964, 11154), (2028, 10802), (2946, 7436), (3432, 6383), (3718, 5892), (3928, 5577), (4056, 5401)]