19455832

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 40698000

約数和(自身を除く): 21242168

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 121, 199, 202, 242, 398, 404, 484, 796, 808, 968, 1111, 1592, 2189, 2222, 4378, 4444, 8756, 8888, 12221, 17512, 20099, 24079, 24442, 40198, 48158, 48884, 80396, 96316, 97768, 160792, 192632, 221089, 442178, 884356, 1768712, 2431979, 4863958, 9727916, 19455832]

約数ペア:

[(1, 19455832), (2, 9727916), (4, 4863958), (8, 2431979), (11, 1768712), (22, 884356), (44, 442178), (88, 221089), (101, 192632), (121, 160792), (199, 97768), (202, 96316), (242, 80396), (398, 48884), (404, 48158), (484, 40198), (796, 24442), (808, 24079), (968, 20099), (1111, 17512), (1592, 12221), (2189, 8888), (2222, 8756), (4378, 4444)]