19892444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{419}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 41489280

約数和(自身を除く): 21596836

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 83, 143, 166, 286, 332, 419, 572, 838, 913, 1079, 1676, 1826, 2158, 3652, 4316, 4609, 5447, 9218, 10894, 11869, 18436, 21788, 23738, 34777, 47476, 59917, 69554, 119834, 139108, 239668, 382547, 452101, 765094, 904202, 1530188, 1808404, 4973111, 9946222, 19892444]

約数ペア:

[(1, 19892444), (2, 9946222), (4, 4973111), (11, 1808404), (13, 1530188), (22, 904202), (26, 765094), (44, 452101), (52, 382547), (83, 239668), (143, 139108), (166, 119834), (286, 69554), (332, 59917), (419, 47476), (572, 34777), (838, 23738), (913, 21788), (1079, 18436), (1676, 11869), (1826, 10894), (2158, 9218), (3652, 5447), (4316, 4609)]