19317148

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 38142720

約数和(自身を除く): 18825572

約数列:

[1, 2, 4, 19, 23, 38, 43, 46, 76, 86, 92, 172, 257, 437, 514, 817, 874, 989, 1028, 1634, 1748, 1978, 3268, 3956, 4883, 5911, 9766, 11051, 11822, 18791, 19532, 22102, 23644, 37582, 44204, 75164, 112309, 209969, 224618, 254173, 419938, 449236, 508346, 839876, 1016692, 4829287, 9658574, 19317148]

約数ペア:

[(1, 19317148), (2, 9658574), (4, 4829287), (19, 1016692), (23, 839876), (38, 508346), (43, 449236), (46, 419938), (76, 254173), (86, 224618), (92, 209969), (172, 112309), (257, 75164), (437, 44204), (514, 37582), (817, 23644), (874, 22102), (989, 19532), (1028, 18791), (1634, 11822), (1748, 11051), (1978, 9766), (3268, 5911), (3956, 4883)]