20910708

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{491}}^1$

素因数の和:534

約数の個数: 108

約数和(自身を含む): 65546208

約数和(自身を除く): 44635500

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 169, 182, 234, 252, 273, 338, 364, 468, 491, 507, 546, 676, 819, 982, 1014, 1092, 1183, 1473, 1521, 1638, 1964, 2028, 2366, 2946, 3042, 3276, 3437, 3549, 4419, 4732, 5892, 6084, 6383, 6874, 7098, 8838, 10311, 10647, 12766, 13748, 14196, 17676, 19149, 20622, 21294, 25532, 30933, 38298, 41244, 42588, 44681, 57447, 61866, 76596, 82979, 89362, 114894, 123732, 134043, 165958, 178724, 229788, 248937, 268086, 331916, 402129, 497874, 536172, 580853, 746811, 804258, 995748, 1161706, 1493622, 1608516, 1742559, 2323412, 2987244, 3485118, 5227677, 6970236, 10455354, 20910708]

約数ペア:

[(1, 20910708), (2, 10455354), (3, 6970236), (4, 5227677), (6, 3485118), (7, 2987244), (9, 2323412), (12, 1742559), (13, 1608516), (14, 1493622), (18, 1161706), (21, 995748), (26, 804258), (28, 746811), (36, 580853), (39, 536172), (42, 497874), (52, 402129), (63, 331916), (78, 268086), (84, 248937), (91, 229788), (117, 178724), (126, 165958), (156, 134043), (169, 123732), (182, 114894), (234, 89362), (252, 82979), (273, 76596), (338, 61866), (364, 57447), (468, 44681), (491, 42588), (507, 41244), (546, 38298), (676, 30933), (819, 25532), (982, 21294), (1014, 20622), (1092, 19149), (1183, 17676), (1473, 14196), (1521, 13748), (1638, 12766), (1964, 10647), (2028, 10311), (2366, 8838), (2946, 7098), (3042, 6874), (3276, 6383), (3437, 6084), (3549, 5892), (4419, 4732)]