19907108

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 39842880

約数和(自身を除く): 19935772

約数列:

[1, 2, 4, 13, 26, 29, 43, 52, 58, 86, 116, 172, 307, 377, 559, 614, 754, 1118, 1228, 1247, 1508, 2236, 2494, 3991, 4988, 7982, 8903, 13201, 15964, 16211, 17806, 26402, 32422, 35612, 52804, 64844, 115739, 171613, 231478, 343226, 382829, 462956, 686452, 765658, 1531316, 4976777, 9953554, 19907108]

約数ペア:

[(1, 19907108), (2, 9953554), (4, 4976777), (13, 1531316), (26, 765658), (29, 686452), (43, 462956), (52, 382829), (58, 343226), (86, 231478), (116, 171613), (172, 115739), (307, 64844), (377, 52804), (559, 35612), (614, 32422), (754, 26402), (1118, 17806), (1228, 16211), (1247, 15964), (1508, 13201), (2236, 8903), (2494, 7982), (3991, 4988)]