18756738

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:389

約数の個数: 128

約数和(自身を含む): 56125440

約数和(自身を除く): 37368702

約数列:

[1, 2, 3, 6, 7, 9, 11, 13, 14, 18, 21, 22, 26, 27, 33, 39, 42, 54, 63, 66, 77, 78, 91, 99, 117, 126, 143, 154, 182, 189, 198, 231, 234, 273, 286, 297, 347, 351, 378, 429, 462, 546, 594, 693, 694, 702, 819, 858, 1001, 1041, 1287, 1386, 1638, 2002, 2079, 2082, 2429, 2457, 2574, 3003, 3123, 3817, 3861, 4158, 4511, 4858, 4914, 6006, 6246, 7287, 7634, 7722, 9009, 9022, 9369, 11451, 13533, 14574, 18018, 18738, 21861, 22902, 26719, 27027, 27066, 31577, 34353, 40599, 43722, 49621, 53438, 54054, 63154, 65583, 68706, 80157, 81198, 94731, 99242, 103059, 121797, 131166, 148863, 160314, 189462, 206118, 240471, 243594, 284193, 297726, 347347, 446589, 480942, 568386, 694694, 721413, 852579, 893178, 1042041, 1339767, 1442826, 1705158, 2084082, 2679534, 3126123, 6252246, 9378369, 18756738]

約数ペア:

[(1, 18756738), (2, 9378369), (3, 6252246), (6, 3126123), (7, 2679534), (9, 2084082), (11, 1705158), (13, 1442826), (14, 1339767), (18, 1042041), (21, 893178), (22, 852579), (26, 721413), (27, 694694), (33, 568386), (39, 480942), (42, 446589), (54, 347347), (63, 297726), (66, 284193), (77, 243594), (78, 240471), (91, 206118), (99, 189462), (117, 160314), (126, 148863), (143, 131166), (154, 121797), (182, 103059), (189, 99242), (198, 94731), (231, 81198), (234, 80157), (273, 68706), (286, 65583), (297, 63154), (347, 54054), (351, 53438), (378, 49621), (429, 43722), (462, 40599), (546, 34353), (594, 31577), (693, 27066), (694, 27027), (702, 26719), (819, 22902), (858, 21861), (1001, 18738), (1041, 18018), (1287, 14574), (1386, 13533), (1638, 11451), (2002, 9369), (2079, 9022), (2082, 9009), (2429, 7722), (2457, 7634), (2574, 7287), (3003, 6246), (3123, 6006), (3817, 4914), (3861, 4858), (4158, 4511)]