21102354

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{991}}^1$

素因数の和:1032

約数の個数: 72

約数和(自身を含む): 56639232

約数和(自身を除く): 35536878

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 169, 182, 234, 273, 338, 507, 546, 819, 991, 1014, 1183, 1521, 1638, 1982, 2366, 2973, 3042, 3549, 5946, 6937, 7098, 8919, 10647, 12883, 13874, 17838, 20811, 21294, 25766, 38649, 41622, 62433, 77298, 90181, 115947, 124866, 167479, 180362, 231894, 270543, 334958, 502437, 541086, 811629, 1004874, 1172353, 1507311, 1623258, 2344706, 3014622, 3517059, 7034118, 10551177, 21102354]

約数ペア:

[(1, 21102354), (2, 10551177), (3, 7034118), (6, 3517059), (7, 3014622), (9, 2344706), (13, 1623258), (14, 1507311), (18, 1172353), (21, 1004874), (26, 811629), (39, 541086), (42, 502437), (63, 334958), (78, 270543), (91, 231894), (117, 180362), (126, 167479), (169, 124866), (182, 115947), (234, 90181), (273, 77298), (338, 62433), (507, 41622), (546, 38649), (819, 25766), (991, 21294), (1014, 20811), (1183, 17838), (1521, 13874), (1638, 12883), (1982, 10647), (2366, 8919), (2973, 7098), (3042, 6937), (3549, 5946)]