18687526

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{181}}^1$

素因数の和:245

約数の個数: 48

約数和(自身を含む): 34948368

約数和(自身を除く): 16260842

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 143, 181, 209, 247, 286, 361, 362, 418, 494, 722, 1991, 2353, 2717, 3439, 3971, 3982, 4693, 4706, 5434, 6878, 7942, 9386, 25883, 37829, 44707, 51623, 51766, 65341, 75658, 89414, 103246, 130682, 491777, 718751, 849433, 983554, 1437502, 1698866, 9343763, 18687526]

約数ペア:

[(1, 18687526), (2, 9343763), (11, 1698866), (13, 1437502), (19, 983554), (22, 849433), (26, 718751), (38, 491777), (143, 130682), (181, 103246), (209, 89414), (247, 75658), (286, 65341), (361, 51766), (362, 51623), (418, 44707), (494, 37829), (722, 25883), (1991, 9386), (2353, 7942), (2717, 6878), (3439, 5434), (3971, 4706), (3982, 4693)]