18976216

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:704

約数の個数: 64

約数和(自身を含む): 44513280

約数和(自身を除く): 25537064

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 31, 34, 56, 62, 68, 119, 124, 136, 217, 238, 248, 434, 476, 527, 643, 868, 952, 1054, 1286, 1736, 2108, 2572, 3689, 4216, 4501, 5144, 7378, 9002, 10931, 14756, 18004, 19933, 21862, 29512, 36008, 39866, 43724, 76517, 79732, 87448, 139531, 153034, 159464, 279062, 306068, 338861, 558124, 612136, 677722, 1116248, 1355444, 2372027, 2710888, 4744054, 9488108, 18976216]

約数ペア:

[(1, 18976216), (2, 9488108), (4, 4744054), (7, 2710888), (8, 2372027), (14, 1355444), (17, 1116248), (28, 677722), (31, 612136), (34, 558124), (56, 338861), (62, 306068), (68, 279062), (119, 159464), (124, 153034), (136, 139531), (217, 87448), (238, 79732), (248, 76517), (434, 43724), (476, 39866), (527, 36008), (643, 29512), (868, 21862), (952, 19933), (1054, 18004), (1286, 14756), (1736, 10931), (2108, 9002), (2572, 7378), (3689, 5144), (4216, 4501)]