18820138428

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{638317}}^1$

素因数の和:638353

約数の個数: 120

約数和(自身を含む): 60553398752

約数和(自身を除く): 41733260324

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 52, 54, 63, 78, 81, 84, 91, 108, 117, 126, 156, 162, 182, 189, 234, 252, 273, 324, 351, 364, 378, 468, 546, 567, 702, 756, 819, 1053, 1092, 1134, 1404, 1638, 2106, 2268, 2457, 3276, 4212, 4914, 7371, 9828, 14742, 29484, 638317, 1276634, 1914951, 2553268, 3829902, 4468219, 5744853, 7659804, 8298121, 8936438, 11489706, 13404657, 16596242, 17234559, 17872876, 22979412, 24894363, 26809314, 33192484, 34469118, 40213971, 49788726, 51703677, 53618628, 58086847, 68938236, 74683089, 80427942, 99577452, 103407354, 116173694, 120641913, 149366178, 160855884, 174260541, 206814708, 224049267, 232347388, 241283826, 298732356, 348521082, 361925739, 448098534, 482567652, 522781623, 672147801, 697042164, 723851478, 896197068, 1045563246, 1344295602, 1447702956, 1568344869, 2091126492, 2688591204, 3136689738, 4705034607, 6273379476, 9410069214, 18820138428]

約数ペア:

[(1, 18820138428), (2, 9410069214), (3, 6273379476), (4, 4705034607), (6, 3136689738), (7, 2688591204), (9, 2091126492), (12, 1568344869), (13, 1447702956), (14, 1344295602), (18, 1045563246), (21, 896197068), (26, 723851478), (27, 697042164), (28, 672147801), (36, 522781623), (39, 482567652), (42, 448098534), (52, 361925739), (54, 348521082), (63, 298732356), (78, 241283826), (81, 232347388), (84, 224049267), (91, 206814708), (108, 174260541), (117, 160855884), (126, 149366178), (156, 120641913), (162, 116173694), (182, 103407354), (189, 99577452), (234, 80427942), (252, 74683089), (273, 68938236), (324, 58086847), (351, 53618628), (364, 51703677), (378, 49788726), (468, 40213971), (546, 34469118), (567, 33192484), (702, 26809314), (756, 24894363), (819, 22979412), (1053, 17872876), (1092, 17234559), (1134, 16596242), (1404, 13404657), (1638, 11489706), (2106, 8936438), (2268, 8298121), (2457, 7659804), (3276, 5744853), (4212, 4468219), (4914, 3829902), (7371, 2553268), (9828, 1914951), (14742, 1276634), (29484, 638317)]