2108015819

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 2845795680

約数和(自身を除く): 737779861

約数列:

[1, 7, 13, 19, 49, 89, 91, 103, 133, 247, 361, 623, 637, 721, 931, 1157, 1339, 1691, 1729, 1957, 2527, 4361, 4693, 5047, 8099, 9167, 9373, 11837, 12103, 13699, 17689, 21983, 25441, 32129, 32851, 37183, 56693, 64169, 65611, 82859, 95893, 119171, 153881, 174173, 178087, 224903, 229957, 260281, 417677, 449183, 483379, 834197, 1077167, 1219211, 1246609, 1574321, 1821967, 2264249, 2923739, 3309287, 3383653, 5839379, 8534477, 15849743, 20466173, 23165009, 23685571, 43020731, 110948201, 162155063, 301145117, 2108015819]

約数ペア:

[(1, 2108015819), (7, 301145117), (13, 162155063), (19, 110948201), (49, 43020731), (89, 23685571), (91, 23165009), (103, 20466173), (133, 15849743), (247, 8534477), (361, 5839379), (623, 3383653), (637, 3309287), (721, 2923739), (931, 2264249), (1157, 1821967), (1339, 1574321), (1691, 1246609), (1729, 1219211), (1957, 1077167), (2527, 834197), (4361, 483379), (4693, 449183), (5047, 417677), (8099, 260281), (9167, 229957), (9373, 224903), (11837, 178087), (12103, 174173), (13699, 153881), (17689, 119171), (21983, 95893), (25441, 82859), (32129, 65611), (32851, 64169), (37183, 56693)]