18587205

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 43545600

約数和(自身を除く): 24958395

約数列:

[1, 3, 5, 7, 9, 13, 15, 17, 21, 27, 35, 39, 45, 51, 63, 65, 85, 89, 91, 105, 117, 119, 135, 153, 189, 195, 221, 255, 267, 273, 315, 351, 357, 445, 455, 459, 585, 595, 623, 663, 765, 801, 819, 945, 1071, 1105, 1157, 1335, 1365, 1513, 1547, 1755, 1785, 1869, 1989, 2295, 2403, 2457, 3115, 3213, 3315, 3471, 4005, 4095, 4539, 4641, 5355, 5607, 5785, 5967, 7565, 7735, 8099, 9345, 9945, 10413, 10591, 12015, 12285, 13617, 13923, 16065, 16821, 17355, 19669, 22695, 23205, 24297, 28035, 29835, 31239, 31773, 40495, 40851, 41769, 52065, 52955, 59007, 68085, 69615, 72891, 84105, 95319, 98345, 121485, 137683, 156195, 158865, 177021, 204255, 208845, 218673, 285957, 295035, 364455, 413049, 476595, 531063, 688415, 885105, 1093365, 1239147, 1429785, 2065245, 2655315, 3717441, 6195735, 18587205]

約数ペア:

[(1, 18587205), (3, 6195735), (5, 3717441), (7, 2655315), (9, 2065245), (13, 1429785), (15, 1239147), (17, 1093365), (21, 885105), (27, 688415), (35, 531063), (39, 476595), (45, 413049), (51, 364455), (63, 295035), (65, 285957), (85, 218673), (89, 208845), (91, 204255), (105, 177021), (117, 158865), (119, 156195), (135, 137683), (153, 121485), (189, 98345), (195, 95319), (221, 84105), (255, 72891), (267, 69615), (273, 68085), (315, 59007), (351, 52955), (357, 52065), (445, 41769), (455, 40851), (459, 40495), (585, 31773), (595, 31239), (623, 29835), (663, 28035), (765, 24297), (801, 23205), (819, 22695), (945, 19669), (1071, 17355), (1105, 16821), (1157, 16065), (1335, 13923), (1365, 13617), (1513, 12285), (1547, 12015), (1755, 10591), (1785, 10413), (1869, 9945), (1989, 9345), (2295, 8099), (2403, 7735), (2457, 7565), (3115, 5967), (3213, 5785), (3315, 5607), (3471, 5355), (4005, 4641), (4095, 4539)]